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Copyright
2004, Texas Instruments Incorporated
Revision History
3
April 2001 - Revised June 2004
SPRS174K
REVISION HISTORY
This data sheet revision history highlights the technical changes made to the SPRS174K device-specific data
sheet to make it an SPRS174L revision.
Global change: Added the ZHH package
PAGE
NO.
ADDITIONS/CHANGES/DELETIONS
15
Changed notes on Table 2-1
15
Added the ZHH package to Table 2-1 and changed the Product Status from TMX to TMS
16
Added the ZHH package to Section 2.3
19
Added a line to the description of XCLKOUT in Table 2-2
37
Added new Table 3-4, Boot Mode Selection
47
Modified the note on interrupts in Table 3-11
64
Modified the equation in section 4.3
75
Changed PCR1 to PCR in Table 4-7
85
Modified Figure 4-12 and changed title from "Modes of Operation" to "GPIO/Peripheral Pin Multiplexing"
87
Added ZHH package to Figure 5-1
87
Updated section 5.2, Documentation Support
92
Added a new row and two footnotes to the Electrical Characterisitcs Over Recommended Operating Conditions table
(section 6.3)
92
Added VDD1 to the first footnote of the Current Consumption by Power-Supply Pins Over Recommended Operating
Conditions During Low-Power Modes at 150-MHz SYSCLKOUT (TMS320F281x) table (section 6.4)
93
Added new values to the Current Consumption by Power-Suply Pins Over Recommended Operating Cnditions During
Low-Power Modes at 150-MHz SYSCLKOUT (TMS320C281x) (section 6.5)
94-95
Added Figure 6-1-through Figure 6-4
107
Added Table 6-10 as part of splitting IDLE mode timing requirements and switiching characteristics into two separate tables
107
Added Table 6-12 as part of splitting STANDBY mode timing requirements and switiching characteristics into two separate
tables
108
Added Table 6-14 as part of splitting HALT mode timing requirements and switiching characteristics into two separate tables
153
Added new Table 6-60 ROM Access Timing
153
Added new Table 6-61 Minimum Required Wait-States at Different Frequencies (C281x devices)
154
Added section 6.33 Migrating From F281x to C281x Devices
Contents
5
April 2001 - Revised December 2004
SPRS174L
Contents
Section
Page
1
Features
13
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2
Introduction
14
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.1
Description
14
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.2
Device Summary
15
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.3
Pin Assignments
16
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.3.1
Terminal Assignments for the GHH Package
16
. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.3.2
Pin Assignments for the PGF Package
17
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.3.3
Pin Assignments for the PBK Package
18
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.4
Signal Descriptions
19
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3
Functional Overview
28
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.1
Memory Map
29
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.2
Brief Descriptions
34
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.2.1
C28x CPU
34
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.2.2
Memory Bus (Harvard Bus Architecture)
35
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.2.3
Peripheral Bus
35
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.2.4
Real-Time JTAG and Analysis
35
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.2.5
External Interface (XINTF) (2812 Only)
35
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.2.6
Flash (F281x Only)
36
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.2.7
ROM (C281x Only)
36
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.2.8
M0, M1 SARAMs
36
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.2.9
L0, L1, H0 SARAMs
36
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.2.10
Boot ROM
36
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.2.11
Security
37
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.2.12
Peripheral Interrupt Expansion (PIE) Block
38
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.2.13
External Interrupts (XINT1, XINT2, XINT13, XNMI)
38
. . . . . . . . . . . . . . . . . . . . . . .
3.2.14
Oscillator and PLL
38
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.2.15
Watchdog
38
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.2.16
Peripheral Clocking
38
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.2.17
Low-Power Modes
39
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.2.18
Peripheral Frames 0, 1, 2 (PFn)
39
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.2.19
General-Purpose Input/Output (GPIO) Multiplexer
39
. . . . . . . . . . . . . . . . . . . . . . . .
3.2.20
32-Bit CPU-Timers (0, 1, 2)
39
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.2.21
Control Peripherals
40
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.2.22
Serial Port Peripherals
40
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.3
Register Map
40
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.4
Device Emulation Registers
43
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.5
External Interface, XINTF (2812 Only)
43
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.5.1
Timing Registers
45
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.5.2
XREVISION Register
45
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.6
Interrupts
46
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.6.1
External Interrupts
49
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.7
System Control
50
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.8
OSC and PLL Block
52
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.8.1
Loss of Input Clock
53
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.9
PLL-Based Clock Module
53
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.10
External Reference Oscillator Clock Option
54
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.11
Watchdog Block
54
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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