MC68376BGMAB20 Freescale Semiconductor, MC68376BGMAB20 Datasheet - Page 155

• 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: -

9.3 Queued Serial Peripheral Interface
MC68336/376
USER’S MANUAL
The queued serial peripheral interface (QSPI) is used to communicate with external
devices through a synchronous serial bus. The QSPI is fully compatible with SPI sys-
tems found on other Motorola products, but has enhanced capabilities. The QSPI can
perform full duplex three-wire or half duplex two-wire transfers. A variety of transfer
rates, clocking, and interrupt-driven communication options is available. Figure 9-2
displays a block diagram of the QSPI.
PROGRAMMABLE
QUEUE CONTROL
LOGIC ARRAY
COMPARATOR
END QUEUE
REGISTERS
CONTROL
REGISTER
POINTER
CONTROL
COUNTER
POINTER
STATUS
BLOCK
QUEUE
LOGIC
DELAY
DONE
Figure 9-2 QSPI Block Diagram
4
QUEUED SERIAL MODULE
4
4
4
CHIP SELECT
G
A
D
D
R
E
S
S
R
E
S
T
E
R
I
COMMAND
MSB
8/16-BIT SHIFT REGISTER
Rx/Tx DATA REGISTER
QSPI RAM
80-BYTE
2
LSB
GENERATOR
BAUD RATE
M
M
S
S
MOSI
MISO
PCS0/SS
PCS[2:1]
SCK
MOTOROLA
QSPI BLOCK
9-5