MC68376BGMAB20 Freescale Semiconductor, MC68376BGMAB20 Datasheet - Page 337

• Manufacturer Part Number: MC68376BGMAB20
• Description: IC MCU 32BIT 8K ROM 160-QFP
• Manufacturer: Freescale Semiconductor
• Series: M683xxr

Specifications of MC68376BGMAB20

• 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: -

R/W[1:0]— Read/Write
STRB — Address Strobe/Data Strobe
DSACK[3:0] — Data Strobe Acknowledge
MC68336/376
USER’S MANUAL
This field causes a chip-select to be asserted only for a read, only for a write, or for
both read and write. Table D-15 shows the options.
This bit controls the timing for assertion of a chip-select in asynchronous mode. Se-
lecting address strobe causes the chip-select to be asserted synchronized with
address strobe. Selecting data strobe causes the chip-select to be asserted synchro-
nized with data strobe.
This field specifies the source of DSACK in asynchronous mode. It also allows the user
to adjust bus timing with internal DSACK generation by controlling the number of wait
states that are inserted to optimize bus speed in a particular application. Table D-16
shows the DSACK[3:0] field encoding. The fast termination encoding (%1110) effec-
tively corresponds to –1 wait states.
0 = Address strobe
1 = Data strobe
Table D-15 Read/Write Field Bit Encoding
Table D-14 BYTE Field Bit Encoding
BYTE[1:0]
R/W[1:0]
00
01
10
11
00
01
10
11
REGISTER SUMMARY
Description
Description
Read/Write
Lower byte
Upper byte
Both bytes
Read only
Write only
Disable
Disable
MOTOROLA
D-19