Texas Instruments TMS320C3x - Manual (Page 63)

TMS320C30, TMS320C31, and TMS320C32 Differences
2-27 Architectural Overview
Table 2–2. Feature Set Comparison
Feature ’C30 ’C31 ’C32
External bus Two buses:
- Primary bus:
32-bit data
24-bit address
STRB active for
0h–7FFFFFh and
80A000h–FFFFFFh
- Expansion bus:
32-bit data
13-bit address
MSTRB active for
800000h–801FFFh
IOSTRB active for
804000h–805FFFh
One bus:
32-bit data
24-bit address
STRB active 0h–7FFFFFh
and 80A000h–FFFFFFh
One bus:
- 32-bit data
24-bit address
STRB0 active for
0h–7FFFFFh and
880000h–8FFFFFh;
- 8-, 16-, 32-bit data in
8-, 16-, 32-bit-wide
memory
STRB1 active for
900000h–FFFFFFh;
- 8-, 16-, 32-bit data in
8-, 16-, 32- bit-wide
memory
IOSTRB active for
810000h–82FFFFh
ROM 4k No No
Boot loader No Yes Yes
On-chip RAM 2k
address:
809800h–809FFFh 2k
address:
809800h–809FFFh 512
address:
87FE00h–87FFFFh
DMA 1 channel
CPU greater priority than
DMA 1 channel
CPU greater priority than
DMA 2 channels
Configurable priorities
Serial ports 2 1 1
Timers 2 2 2
Interrupts Level-triggered Level-triggered Level-triggered or com-
bination of edge- and
level-triggered
Interrupt vector
table Fixed 0–3Fh Microprocessor: 0–3Fh
fixed
Boot loader:
809C1h–809FFFh fixed Relocatable
Package 208 PQFP
181 PGA 132 PQFP 144 PQFP
Voltage 5 V 5 V and 3.3 V 5 V
Temperature 0
°
to 85
°
C (commercial)
–40 to 125
°
C (extended)
–55 125
°
C (military)
0
°
to 85
°
C (commercial)
–40 to 125
°
C (extended)
–55 125
°
C (military)
0
°
to 85
°
C (commercial)
–40 to 125
°
C (extended)
–55 125
°
C (military)