MC908SR12MFAER Freescale Semiconductor, MC908SR12MFAER Datasheet - Page 294

• Manufacturer Part Number: MC908SR12MFAER
• Description: IC MCU 12K FLASH 4/8MHZ 48-LQFP
• Manufacturer: Freescale Semiconductor
• Series: HC08r

Specifications of MC908SR12MFAER

• Core Processor: HC08
• Core Size: 8-Bit
• Speed: 8MHz
• Connectivity: I²C, SCI
• Peripherals: LVD, POR, PWM, Temp Sensor
• Number Of I /o: 31
• Program Memory Size: 12KB (12K x 8)
• Program Memory Type: FLASH
• Ram Size: 512 x 8
• Voltage - Supply (vcc/vdd): 4.5 V ~ 5.5 V
• Data Converters: A/D 14x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 125°C
• Package / Case: 48-LQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Other names: MC908SR12MFAER; MC908SR12MFAERTR

Multi-Master IIC Interface (MMIIC)
Data Sheet
294
Addr.
$004C
$004D
$004A
$004B
$004E
$004F
$0048
$0049
MMIIC Generic Pin Names:
MMIIC CRC Data Register
MMIIC Control Register 1
MMIIC Control Register 2
MMIIC Frequency Divider
MMIIC Address Register
MMIIC Status Register
Register Name
MMIIC Data Transmit
MMIIC Data Receive
SDA0
SDA1
SCL0
SCL1
(MMCRDR)
(MMADR)
(MMDTR)
(MDDRR)
(MMFDR)
(MMCR1)
(MMCR2)
(MMSR)
Register
Register
Register
Reset:
Reset:
Reset:
Reset:
Reset:
Reset:
Reset:
Reset:
Figure 17-1. MMIIC I/O Register Summary
Read:
Write:
Read:
Write:
Read: MMALIF MMNAKIF
Write:
Read: MMRXIF
Write:
Read:
Write:
Read: MMRD7
Write:
Read:
Write:
Read:
Write:
Table 17-1. Pin Name Conventions
MMCRCD7 MMCRCD6 MMCRCD5 MMCRCD4 MMCRCD3 MMCRCD2 MMCRCD1 MMCRCD0
MMAD7
Full MCU Pin Names:
MMTD7
MMEN
Bit 7
Multi-Master IIC Interface (MMIIC)
1
0
0
0
0
0
0
0
0
0
0
PTB2/SDA1/TxD
PTB3/SCL1/RxD
PTB0/SDA0
PTB1/SCL0
= Unimplemented
MMTXIF MMATCH MMSRW MMRXAK
MMAD6
MMRD6
MMTD6
MMIEN
6
0
0
0
0
0
0
0
0
0
0
0
MMCLRBB
MMRD5
MMAD5
MMTD5
MMBB
5
1
0
0
0
0
0
0
0
0
0
MC68HC908SR12•MC68HC08SR12 — Rev. 5.0
MMEN and SDASCL1 bits in MMCR1 ($0049)
MMEN and SDASCL1 bits in MMCR1 ($0049)
MMAD4
MMAST
MMTD4
MMRD4
4
0
0
0
0
0
0
0
0
0
0
Pin Selected for MMIIC Function By:
ENSCI bit in SCC1 ($0013);
MMTXAK REPSEN
MMAD3
MMTD3
MMRD3
MMRW
3
0
0
0
1
0
0
0
0
0
MMCRCBF
MMAD2
MMRD2
MMBR2
MMTD2
Freescale Semiconductor
2
0
0
0
0
0
0
0
0
1
MMCRCBYTE
MMTXBE MMRXBF
MMAD1
MMRD1
MMBR1
MMTD1
1
0
0
0
0
1
0
0
0
0
MMCRCEF
SDASCL1
MMEXTAD
Unaffected
MMRD0
MMTD0
MMBR0
Bit 0
0
0
0
0
0
0
0