MC908AP32ACFBE Freescale Semiconductor, MC908AP32ACFBE Datasheet - Page 239
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MC908AP32ACFBE
Manufacturer Part Number
MC908AP32ACFBE
Description
IC MCU 32K FLASH 8MHZ 44-QFP
Manufacturer
Freescale Semiconductor
Series
HC08r
Datasheet
1.MC908AP16ACFBER.pdf
(316 pages)
Specifications of MC908AP32ACFBE
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
32KB (32K x 8)
Program Memory Type
FLASH
Ram Size
2K x 8
Voltage - Supply (vcc/vdd)
4.5 V ~ 5.5 V
Data Converters
A/D 8x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
44-QFP
Controller Family/series
HC08
No. Of I/o's
32
Ram Memory Size
2KB
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
2 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
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14.7 Program Algorithm
When the MMIIC module detects an arbitration loss in master mode, it releases both SDA and SCL lines
immediately. But if there are no further STOP conditions detected, the module will hang up. Therefore, it
is recommended to have time-out software to recover from this condition. The software can start the
time-out counter by looking at the MMBB (bus busy) flag and reset the counter on the completion of one
byte transmission. If a time-out has occurred, software can clear the MMEN bit (disable MMIIC module)
to release the bus, and hence clear the MMBB flag. This is the only way to clear the MMBB flag by
software if the module hangs up due to a no STOP condition received. The MMIIC can resume operation
again by setting the MMEN bit.
Freescale Semiconductor
MMBR2
0
0
0
0
1
1
1
1
MMBR1
The frequency of the MMIIC baud rate is only guaranteed for 100kHz to
10kHz. The divider is available for the flexibility on bus frequency selection.
0
0
1
1
0
0
1
1
MMBR0
0
1
0
1
0
1
0
1
Table 14-2. MMIIC Baud Rate Selection
MC68HC908AP A-Family Data Sheet, Rev. 3
Divider
1280
2560
160
320
640
20
40
80
3.125kHz
12.5kHz
6.25kHz
400kHz
200kHz
100kHz
NOTE
50kHz
25kHz
8MHz
MMIIC Baud Rates for Bus Clocks:
1.5625kHz
3.125kHz
12.5kHz
6.25kHz
200kHz
100kHz
50kHz
25kHz
4MHz
0.78125kHz
1.5625kHz
3.125kHz
12.5kHz
6.25kHz
100kHz
50kHz
25kHz
2MHz
Program Algorithm
0.78125kHz
1.5625kHz
0.3906kHz
3.125kHz
12.5kHz
6.25kHz
50kHz
25kHz
1MHz
239
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