CS1880-IB View Datasheet(PDF) - Cirrus Logic

Part Name

Description

MFG CO.

CS1880-IB

Octal E1 Line Interface Unit

Cirrus Logic 

CS61880

16.3 Device ID Register (IDR)

Revision section: 0h = Rev A, 1h = Rev B and so on. The device Identification Code [27 - 12] is derived

from the last three digits of the part number (880). The LSB is a constant 1, as defined by IEEE 1149.1.

CS61880 IDCODE REGISTER(IDR)

REVISION

DEVICE IDCODE REGISTER

MANUFACTURER CODE

31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0

0h

0h

8h

8h

0h

0h

0h

9h

0 0 0 0 0 0 0 0 1 0 0 0 1 0 0 0 0 0 0 0 0 0 0011001001

17. BOUNDARY SCAN REGISTER (BSR)

The BSR is a shift register that provides access to the digital I/O pins. The BSR is used to read and write

the device pins to verify interchip connectivity. Each pin has a corresponding scan cell in the register. The

pin to scan cell mapping is given in the Boundary Scan Register description shown in Table 14.

NOTE: Data is shifted LSB first into the BSR register.

BSR

Bit

0

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

Table 14. Boundary Scan Register

Pin

Name

LOS7

RNEG7

RPOS7

RCLK7

-

TNEG7

TPOS7

TCLK7

LOS6

RNEG6

RPOS6

RCLK6

-

TNEG6

TPOS6

TCLK6

MCLK

MODE

MODE

ADDR4

ADDR3

ADDR2

ADDR1

ADDR0

LOOP0/D0

LOOP0/D0

LOOP0/D0

LOOP1/D1

Cell

Type

O

O

O

O

Note 2

I

I

I

O

O

O

O

Note 2

I

I

I

I

I

I

I

I

I

I

I

I

I

O

I

Bit

Symbol

LOS7

RNEG7

RPOS7

RCLK7

HIZ7_B

TNEG7

TPOS7

TCLK7

LOS6_B

RNEG6

RPOS6

RCLK6

HIZ6_B

TNEG6

TPOS6

TCLK6

MCLK

MODE_TRI

MODE_IN

ADDR4

ADDR3

ADDR2

ADDR1

ADDR0

LPT0

LPI0

LPO0

LPT1

DS450PP2

47

Share Link: