MC812A4CPVE8 Freescale Semiconductor, MC812A4CPVE8 Datasheet - Page 188

• Manufacturer Part Number: MC812A4CPVE8
• Description: IC MCU 16BIT EEPROM 4K 112-LQFP
• Manufacturer: Freescale Semiconductor
• Series: HC12r

Specifications of MC812A4CPVE8

• Core Processor: CPU12
• Core Size: 16-Bit
• Speed: 8MHz
• Connectivity: SCI, SPI
• Peripherals: POR, WDT
• Number Of I /o: 83
• Program Memory Size: 4KB (4K x 8)
• Program Memory Type: EEPROM
• Ram Size: 1K x 8
• Voltage - Supply (vcc/vdd): 4.5 V ~ 5.5 V
• Data Converters: A/D 8x8b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 112-LQFP
• Processor Series: HC812A
• Core: HC12
• Data Bus Width: 16 bit
• Data Ram Size: 1 KB
• Interface Type: SCI, SPI
• Maximum Clock Frequency: 8 MHz
• Number Of Programmable I/os: 91
• Number Of Timers: 8
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 8 bit, 8 Channel
• Controller Family/series: 68HC12
• No. Of I/o's: 91
• Eeprom Memory Size: 4KB
• Ram Memory Size: 1KB
• Cpu Speed: 8MHz
• No. Of Timers: 1
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Lead Free Status / Rohs Status: Details

Serial Peripheral Interface (SPI)
15.6.3 SPI Baud Rate Register
Read: Anytime
Write: Anytime
SPR2–SPR0 — SPI Clock Rate Select Bits
188
These bits select one of eight SPI baud rates as shown in
selecting E-clock divided by two.
Address: $00D2
Reset:
Read:
Write:
SPR[2:1:0]
Bit 7
0
0
000
001
010
011
100
101
110
111
Figure 15-11. SPI Baud Rate Register (SP0BR)
= Unimplemented
Table 15-3. SPI Clock Rate Selection
6
0
0
E-Clock
Divisor
MC68HC812A4 Data Sheet, Rev. 7
128
256
16
32
64
2
4
8
5
0
0
(E-Clock = 4 MHz)
Baud Rate
4
0
0
62.5 kHz
31.3 kHz
15.6 kHz
2.0 MHz
1.0 MHz
500 kHz
250 kHz
125 kHz
3
0
0
Table
(E-Clock = 8 MHz)
SPR2
15-3. Reset clears SPR2–SPR0,
2
0
Baud Rate
62.5 kHz
31.3 kHz
4.0 MHz
2.0 MHz
1.0 MHz
500 kHz
250 kHz
125 kHz
SPR1
1
0
Freescale Semiconductor
SPR0
Bit 0
0