MC908AP32CBE Freescale Semiconductor, MC908AP32CBE Datasheet - Page 178

• Manufacturer Part Number: MC908AP32CBE
• Description: IC MCU 32K FLASH 8MHZ 42DIP
• Manufacturer: Freescale Semiconductor
• Series: HC08r

Specifications of MC908AP32CBE

• Core Processor: HC08
• Core Size: 8-Bit
• Speed: 8MHz
• Connectivity: I²C, IRSCI, SCI, SPI
• Peripherals: LED, LVD, POR, PWM
• Number Of I /o: 30
• Program Memory Size: 32KB (32K x 8)
• Program Memory Type: FLASH
• Ram Size: 2K 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: 42-DIP (0.600", 15.24mm)
• Controller Family/series: HC08
• No. Of I/o's: 30
• 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: Through Hole
• 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

Serial Communications Interface Module (SCI)
11.8.7 SCI Baud Rate Register
The baud rate register (SCBR) selects the baud rate for both the receiver and the transmitter.
SCP1 and SCP0 — SCI Baud Rate Prescaler Bits
SCR2–SCR0 — SCI Baud Rate Select Bits
Use this formula to calculate the SCI baud rate:
where:
178
These read/write bits select the baud rate prescaler divisor as shown in
and SCP0.
These read/write bits select the SCI baud rate divisor as shown in
SCR2–SCR0.
SCI clock source = f
(selected by SCIBDSRC bit in CONFIG2 register)
PD = prescaler divisor
BD = baud rate divisor
Address:
Reset:
Read:
Write:
$0019
BUS
0
0
SCR2, SCR1, and SCR0
SCP1 and SCP0
or CGMXCLK
Figure 11-16. SCI Baud Rate Register (SCBR)
= Unimplemented
00
01
10
11
Table 11-6. SCI Baud Rate Prescaling
baud rate
Table 11-7. SCI Baud Rate Selection
6
0
0
MC68HC908AP Family Data Sheet, Rev. 4
000
001
010
011
100
101
110
111
SCP1
=
5
0
SCI clock source
-------------------------------------------- -
64 PD BD
×
SCP0
4
0
×
Prescaler Divisor (PD)
Baud Rate Divisor (BD)
R
R
3
0
13
1
3
4
= Reserved
128
SCR2
16
32
64
1
2
4
8
2
0
Table
Table
11-7. Reset clears
SCR1
1
0
11-6. Reset clears SCP1
Freescale Semiconductor
SCR0
Bit 0
0