MC68376BAMAB20 Freescale Semiconductor, MC68376BAMAB20 Datasheet - Page 333

• Manufacturer Part Number: MC68376BAMAB20
• Description: IC MCU 32BIT 8K ROM 160-QFP
• Manufacturer: Freescale Semiconductor
• Series: M683xxr

Specifications of MC68376BAMAB20

• Core Processor: CPU32
• Core Size: 32-Bit
• Speed: 20MHz
• Connectivity: CAN, EBI/EMI, SCI, SPI
• Peripherals: POR, PWM, WDT
• Number Of I /o: 18
• Program Memory Type: ROMless
• Ram Size: 7.5K x 8
• Voltage - Supply (vcc/vdd): 4.75 V ~ 5.25 V
• Data Converters: A/D 16x10b
• Oscillator Type: External
• Operating Temperature: -40°C ~ 125°C
• Package / Case: 160-QFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Program Memory Size: -

D.2.16 Port C Data Register
PORTC — Port C Data Register
D.2.17 Chip-Select Pin Assignment Registers
CSPAR0 — Chip-Select Pin Assignment Register 0
MC68336/376
USER’S MANUAL
15
15
0
0
RESET:
RESET:
To reset the software watchdog:
Both writes must occur in the order specified before the software watchdog times out,
but any number of instructions can occur between the two writes.
PORTC latches data for chip-select pins configured as discrete outputs.
The chip-select pin assignment registers configure the chip-select pins for use as dis-
crete I/O, an alternate function, or as an 8-bit or 16-bit chip-select. Each 2-bit field in
CSPAR[0:1] (except for CSBTPA[1:0]) has the possible encoding shown in Table D-9.
CSPAR0 contains seven 2-bit fields that determine the function of corresponding chip-
select pins. Bits [15:14] are not used. These bits always read zero; writes have no
effect. CSPAR0 bit 1 always reads one; writes to CSPAR0 bit 1 have no effect. The
alternate functions can be enabled by data bus mode selection during reset.
Table D-10 shows CSPAR0 pin assignments.
1. Write $55 to SWSR.
2. Write $AA to SWSR.
14
0
0
DATA2
13
CS5PA[1:0]
12
NOT USED
1
DATA2
11
CS4PA[1:0]
Table D-9 Pin Assignment Field Encoding
NOTES:
CSxPA[1:0]
10
1. Does not apply to the CSBOOT field.
1
00
01
10
11
DATA2
REGISTER SUMMARY
CS3PA[1:0]
9
8
8
1
DATA1
Chip-select (16-bit port)
Chip-select (8-bit port)
CS2PA[1:0]
7
0
0
7
Alternate function
Discrete output
Description
PC6
6
1
6
1
DATA1
PC5
CS1PA[1:0]
5
1
5
1
1
PC4
4
1
4
1
DATA1
PC3
CS0PA[1:0]
3
1
3
PC2
2
1
2
1
$YFFA41
$YFFA44
MOTOROLA
PC1
CSBTPA[1:0]
1
1
1
1
DATA0
D-15
PC0
0
1
0