MC68HC16Z1CPV25 Freescale Semiconductor, MC68HC16Z1CPV25 Datasheet - Page 215

• Manufacturer Part Number: MC68HC16Z1CPV25
• Description: IC MPU 1K RAM 25MHZ 144-LQFP
• Manufacturer: Freescale Semiconductor
• Series: HC16r

Specifications of MC68HC16Z1CPV25

• Core Processor: CPU16
• Core Size: 16-Bit
• Speed: 25MHz
• Connectivity: EBI/EMI, SCI, SPI
• Peripherals: POR, PWM, WDT
• Number Of I /o: 16
• Program Memory Type: ROMless
• Ram Size: 1K x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 5.5 V
• Data Converters: A/D 8x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 144-LQFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -
• Program Memory Size: -
• Other names: Q1141110

9.3 Queued Serial Peripheral Interface
M68HC16 Z SERIES
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 Freescale 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
PROGRAMMABLE
QUEUE CONTROL
LOGIC ARRAY
COMPARATOR
END QUEUE
REGISTERS
CONTROL
REGISTER
POINTER
CONTROL
COUNTER
POINTER
STATUS
BLOCK
QUEUE
LOGIC
DELAY
displays a block diagram of the QSPI.
Freescale Semiconductor, Inc.
For More Information On This Product,
DONE
Figure 9-2 QSPI Block Diagram
4
QUEUED SERIAL MODULE
4
Go to: www.freescale.com
4
4
CHIP SELECT
D
D
R
R
G
R
A
E
S
S
E
S
T
E
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
QSPI BLOCK
9-5