MC908AP8CFAE Freescale Semiconductor, MC908AP8CFAE Datasheet - Page 212
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MC908AP8CFAE
Manufacturer Part Number
MC908AP8CFAE
Description
IC MCU 8K FLASH 8MHZ 48-LQFP
Manufacturer
Freescale Semiconductor
Series
HC08r
Specifications of MC908AP8CFAE
Core Processor
HC08
Core Size
8-Bit
Speed
8MHz
Connectivity
I²C, IRSCI, SCI, SPI
Peripherals
LED, LVD, POR, PWM
Number Of I /o
32
Program Memory Size
8KB (8K x 8)
Program Memory Type
FLASH
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
48-LQFP
Controller Family/series
HC08
No. Of I/o's
32
Ram Memory Size
1KB
Cpu Speed
8MHz
No. Of Timers
2
Embedded Interface Type
I2C, SCI, SPI
Rohs Compliant
Yes
Processor Series
HC08AP
Core
HC08
Data Bus Width
8 bit
Data Ram Size
1 KB
Interface Type
SCI, SPI
Maximum Clock Frequency
8 MHz
Number Of Programmable I/os
32
Number Of Timers
4
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
Development Tools By Supplier
FSICEBASE, DEMO908AP64E, M68CBL05CE
Minimum Operating Temperature
- 40 C
On-chip Adc
10 bit, 8 Channel
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Lead Free Status / Rohs Status
Details
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
MC908AP8CFAE
Manufacturer:
Freescale Semiconductor
Quantity:
10 000
Part Number:
MC908AP8CFAE
Manufacturer:
FREESCALE
Quantity:
20 000
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Serial Peripheral Interface Module (SPI)
13.4 Functional Description
Figure 13-2
The SPI module allows full-duplex, synchronous, serial communication between the MCU and peripheral
devices, including other MCUs. Software can poll the SPI status flags or SPI operation can be
interrupt-driven.
The following paragraphs describe the operation of the SPI module.
13.4.1 Master Mode
The SPI operates in master mode when the SPI master bit, SPMSTR, is set.
Only a master SPI module can initiate transmissions. Software begins the transmission from a master SPI
module by writing to the transmit data register. If the shift register is empty, the byte immediately transfers
to the shift register, setting the SPI transmitter empty bit, SPTE. The byte begins shifting out on the MOSI
pin under the control of the serial clock. (See
The SPR1 and SPR0 bits control the baud rate generator and determine the speed of the shift register.
(See
master also controls the shift register of the slave peripheral.
As the byte shifts out on the MOSI pin of the master, another byte shifts in from the slave on the master’s
MISO pin. The transmission ends when the receiver full bit, SPRF, becomes set. At the same time that
SPRF becomes set, the byte from the slave transfers to the receive data register. In normal operation,
SPRF signals the end of a transmission. Software clears SPRF by reading the SPI status and control
register with SPRF set and then reading the SPI data register. Writing to the SPI data register clears the
SPTE bit.
210
$0010 SPI Control Register (SPCR)
$0011
$0012
Addr.
13.13.2 SPI Status and Control
SPI Status and Control
Register Name
shows the structure of the SPI module.
SPI Data Register
Configure the SPI modules as master or slave before enabling them.
Enable the master SPI before enabling the slave SPI. Disable the slave SPI
before disabling the master SPI. (See
(SPSCR)
Register
(SPDR)
Reset:
Reset:
Reset:
Read:
Read:
Read:
Write:
Write:
Write:
Figure 13-1. SPI I/O Register Summary
MC68HC908AP Family Data Sheet, Rev. 4
SPRIE
SPRF
Bit 7
R7
T7
0
0
Register.) Through the SPSCK pin, the baud rate generator of the
= Unimplemented
ERRIE
R6
T6
R
Figure
6
0
0
NOTE
SPMSTR
=
13-3.)
OVRF
13.13.1 SPI Control
R5
T5
5
1
0
MODF
Unaffected by reset
CPOL
R4
T4
4
0
0
CPHA
SPTE
R3
T3
R
3
1
1
Register.)
= Reserved
MODFEN
SPWOM
R2
T2
2
0
0
Freescale Semiconductor
SPR1
SPE
R1
T1
1
0
0
SPTIE
SPR0
Bit 0
R0
T0
0
0
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