CD1865 datasheet(95/150 Pages) INTEL

95 / 150 page

Intelligent Eight-Channel Communications Controller — CD1865

Datasheet

Channel Registers

SRER

Enable Register

R/W

000

0010

$02

$04

$05

112

CCR

Channel Command Register

R/W

000

0001

$01

$02

$03

112

COR1

Channel Option Register 1

R/W

000 0011

$03

$06

$07

116

COR2

Channel Option Register 2

R/W

000

0100

$04

$08

$09

116

COR3

Channel Option Register 3

R/W

000

0101

$05

$0A

$0B

117

CCSR

Channel Control Status Register

000 0110

$06

$0C

$0D

118

RBR

Receiver Bit Register

011 0011

$33

$66

$67

119

RTPR

Receive Time-Out Period Register

R/W

001

1000

$18

$30

$31

120

RBPRH

Receive Bit Rate Period Register

High

R/W

011 0001

$31

$62

$63

120

RBPRL

Receive Bit Rate Period Register

Low

R/W

011 0010

$32

$64

$65

120

TBPRH

Transmit Bit Rate Period Register

High

R/W

011 1001

$39

$72

$73

121

TBPRL

Transmit Bit Rate Period Register

Low

R/W

011 1010

$3A

$74

$75

121

SCHR1

Special Character Register 1

R/W

000

1001

$09

$12

$13

121

SCHR2

Special Character Register 2

R/W

000

1010

$0A

$14

$15

122

SCHR3

Special Character Register 3

R/W

000 1011

$0B

$16

$17

122

SCHR4

Special Character Register 4

R/W

000 1100

$0C

$18

$19

123

MCR

Modem Change Register

R/W

001

0010

$12

$24

$25

123

MCOR1

Modem Change Option Register 1

R/W

001

0000

$10

$20

$21

124

MCOR2

Modem Change Option Register 2

R/W

001

0001

$11

$22

$23

125

MSVR

Modem Signal Value Register

R/W

010

1000

$28

$50

$51

125

MSVRS

Modem Signal Value Request To

Send

010

1000

$29

$52

$53

126

MSVDR

Modem Signal Value Data Terminal

Ready

010

1010

$2A

$54

$55

126

Name

Description

Access

Binary

Address

Default

Value

Hex

Address

(8 bit)1

Hex

Address

(Intel)2

Hex

Address

(Motorola∗)3

Page

NOTES:

1. Hex address for 8-bit processor.

2. Address for Intel-style processor, see the following description.

3. Address for Motorola-style processor, see the following description.

4. $ denotes address value.

CD1865 Datasheet(PDF) 95 Page - Intel Corporation

CD1865 Datasheet(HTML) 95 Page - Intel Corporation

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