MC68HC11A0 View Datasheet(PDF) - Freescale Semiconductor

Part Name

Description

Manufacturer

MC68HC11A0

8-Bit Microcontrollers

Freescale Semiconductor 

EXTAL

XTAL

OSCILLATOR

AND

CLOCK GENERATOR

(÷4)

E

AS

INTERNAL BUS CLOCK (PH2)

÷3

÷4

÷13

SCP[1:0]

0:0

0:1

1:0

1:1

SCR[2:0]

0:0:0

÷2

0:0:1

÷2

0:1:0

÷2

0:1:1

÷2

1:0:0

÷2

1:0:1

÷2

1:1:0

÷16

SCI

TRANSMIT

BAUD RATE

(1X)

÷2

1:1:1

SCI

RECEIVE

BAUD RATE

(16X)

Figure 8 SCI Baud Rate Diagram

SCI BAUD GENERATOR

SCCR1 — SCI Control Register 1

Bit 7

6

5

R8

T8

0

RESET: U

U

0

4

3

2

M

WAKE

0

0

0

0

R8 — Receive Data Bit 8

If M bit is set, R8 stores ninth bit in receive data character.

T8 — Transmit Data Bit 8

If M bit is set, T8 stores ninth bit in transmit data character.

M — Mode (Select Character Format)

0 = Start bit, 8 data bits, 1 stop bit

1 = Start bit, 9 data bits, 1 stop bit

$102C

1

Bit 0

0

0

0

0

MOTOROLA

26

MC68HC11A8

MC68HC11A8TS/D

Share Link: