MC68376BAMFT20 Freescale Semiconductor, MC68376BAMFT20 Datasheet - Page 338

• Manufacturer Part Number: MC68376BAMFT20
• Manufacturer: Freescale Semiconductor

Specifications of MC68376BAMFT20

• Cpu Family: 68K/M683xx
• Device Core: ColdFire
• Device Core Size: 32b
• Frequency (max): 20MHz
• Interface Type: QSPI/SCI
• Program Memory Type: ROM
• Program Memory Size: 8KB
• Total Internal Ram Size: 7.5KB
• # I/os (max): 18
• Number Of Timers - General Purpose: 2
• Operating Supply Voltage (typ): 5V
• Operating Supply Voltage (max): 5.25V
• Operating Supply Voltage (min): 4.75V
• On-chip Adc: 16-chx10-bit
• Instruction Set Architecture: RISC
• Operating Temp Range: -40C to 125C
• Operating Temperature Classification: Automotive
• Mounting: Surface Mount
• Pin Count: 160
• Package Type: PQFP
• Lead Free Status / Rohs Status: Not Compliant

SPACE[1:0] — Address Space Select
IPL[2:0] — Interrupt Priority Level
D-20
MOTOROLA
Use this option field to select an address space for the chip-select logic. The CPU32
normally operates in supervisor or user space, but interrupt acknowledge cycles must
take place in CPU space. Table D-17 shows address space bit encodings.
When SPACE[1:0] is set for CPU space (%00), chip-select logic can be used for inter-
rupt acknowledge. During an interrupt acknowledge cycle, the priority level on address
lines ADDR[3:1] is compared to the value in IPL[2:0]. If the values are the same, a
chip-select can be asserted, provided other option register conditions are met. Table
D-18 shows IPL[2:0] field encoding.
DSACK[3:0]
Table D-18 Interrupt Priority Level Field Encoding
0000
0001
0010
0011
0100
0101
0110
0111
1000
1001
1010
1011
1100
1101
1110
1111
Table D-17 Address Space Bit Encodings
Table D-16 DSACK Field Encoding
SPACE[1:0]
IPL[2:0]
00
01
10
11
Clock Cycles Required
000
001
010
011
100
101
110
111
REGISTER SUMMARY
Per Access
Interrupt Priority Level
10
11
12
13
14
15
16
—
3
4
5
6
7
8
9
2
Supervisor/User Space
Any Level
Supervisor Space
Address Space
CPU Space
User Space
1
2
3
4
5
6
7
Wait States Inserted
Fast Termination
External DSACK
Per Access
10
11
12
13
0
1
2
3
4
5
6
7
8
9
USER’S MANUAL
MC68336/376