s908qc16vdse Freescale Semiconductor, Inc, s908qc16vdse Datasheet - Page 145

• Manufacturer Part Number: s908qc16vdse
• Description: M68hc08 Microcontrollers
• Manufacturer: Freescale Semiconductor, Inc

SCP1 and SCP0 — ESCI Baud Rate Register Prescaler Bits
SCR2–SCR0 — ESCI Baud Rate Select Bits
13.8.8 ESCI Prescaler Register
The ESCI prescaler register (SCPSC) together with the ESCI baud rate register selects the baud rate for
both the receiver and the transmitter.
Freescale Semiconductor
These read/write bits select the baud rate register prescaler divisor as shown in
These read/write bits select the ESCI baud rate divisor as shown in
SCR2–SCR0.
There are two prescalers available to adjust the baud rate — one in the
ESCI baud rate register and one in the ESCI prescaler register.
LINT
0
0
0
1
1
1
1
MC68HC908QC16 • MC68HC908QC8 • MC68HC908QC4 Data Sheet, Rev. 4
LINR
0
1
1
0
0
1
1
SCP[1:0]
SCR[2:1:0]
0 0
0 1
1 0
1 1
0 0 0
0 0 1
0 1 0
0 1 1
1 0 0
1 0 1
1 1 0
1 1 1
Table 13-6. ESCI Baud Rate Prescaling
Table 13-7. ESCI Baud Rate Selection
Table 13-5. ESCI LIN Control Bits
M
X
0
1
0
1
0
1
Normal ESCI functionality
11-bit break detect enabled for LIN receiver
12-bit break detect enabled for LIN receiver
13-bit generation enabled for LIN transmitter
14-bit generation enabled for LIN transmitter
11-bit break detect/13-bit generation enabled for LIN
12-bit break detect/14-bit generation enabled for LIN
NOTE
Prescaler Divisor (BPD)
Baud Rate Divisor (BD)
Baud Rate Register
Functionality
13
1
3
4
128
16
32
64
1
2
4
8
Table
13-7. Reset clears
Table
13-6.
Registers
145