MC908AZ32ACFU Freescale Semiconductor, MC908AZ32ACFU Datasheet - Page 185

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MC908AZ32ACFU

Manufacturer Part Number
MC908AZ32ACFU
Description
IC MCU 32K FLASH 8.4MHZ 64-QFP
Manufacturer
Freescale Semiconductor
Series
HC08r
Datasheet

Specifications of MC908AZ32ACFU

Core Processor
HC08
Core Size
8-Bit
Speed
8MHz
Connectivity
CAN, SCI, SPI
Peripherals
LVD, POR, PWM
Number Of I /o
40
Program Memory Size
32KB (32K x 8)
Program Memory Type
FLASH
Eeprom Size
512 x 8
Ram Size
1K x 8
Voltage - Supply (vcc/vdd)
4.5 V ~ 5.5 V
Data Converters
A/D 15x8b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
64-QFP
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant

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17.13.3 SPI Data Register
The SPI data register is the read/write buffer for the receive data register and the transmit data register.
Writing to the SPI data register writes data into the transmit data register. Reading the SPI data register
reads data from the receive data register. The transmit data and receive data registers are separate
buffers that can contain different values. See
R7–R0/T7–T0 — Receive/Transmit Data Bits
Freescale Semiconductor
Address:
Do not use read-modify-write instructions on the SPI data register since the
buffer read is not the same as the buffer written.
Reset:
Read:
Write:
$0012
Bit 7
R7
T7
Figure 17-14. SPI Data Register (SPDR)
R6
T6
6
MC68HC908AZ32A Data Sheet, Rev. 2
R5
T5
5
Figure
Indeterminate after Reset
NOTE
R4
T4
4
17-2.
R3
T3
3
R2
T2
2
R1
T1
1
Bit 0
R0
T0
I/O Registers
185

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