ZL50074GAC ZARLINK [Zarlink Semiconductor Inc], ZL50074GAC Datasheet - Page 32

• Manufacturer Part Number: ZL50074GAC
• Description: 32 K x 32 K Channel TDM Switch with 128 Input and 128 Output Streams
• Manufacturer: ZARLINK [Zarlink Semiconductor Inc]

12.1.1
The bit functions of the connection memory are illustrated in Table 15.
31 - 29
28 - 15
14 - 10
9 - 0
External Read/Write Address: 000000
Reset Value: 0000
Bit
PCF
31
15
2
0
Connection Memory Bit Functions
PCF
GP
30
14
1
4
PCF2 - 0
Unused
GP4 - 0
Name
STCH
9 - 0
H
PCF
GP
29
13
0
3
Per Channel Function
Reserved. In normal functional mode, these bits MUST be set to zero.
Source Group Selection. These bits define the input/source group number (31 - 0).
Source Stream and Channel Selection / Message Mode Data
In connection mode (constant/variable delay), these bits define the input/source stream
and channel number, depending on the data rate.
For 65.536 Mbps, bits 9 - 0 select the input channel (0 - 1023).
For 32.768 Mbps, bits 9 - 1 select the input channel (0 - 511). Bit 0 selects stream STiA
(0) or STiB (1)
For 16.869 Mbps, bits 9 - 2 select the input channel (0 - 255). Bits 1 - 0 select stream
STiA (00), STiB (01), STiC (10), or STiD (11)
For 8.192 Mbps, bits 9 - 3 select the input channel (0 - 127). Bit 2 MUST be set to 0. Bits
1 - 0 select stream STiA (00), STiB (01), STiC (10), or STiD (11).
In message mode, bits 7 - 0 define the output data. The data is output sequentially with
bit 7 being output first. Bits 9 - 8 are not used.
GP
28
12
0
2
PCF2 - 0
GP
27
H
11
0
1
000
001
010
011
100
101
110
Table 15 - Connection Memory Bits (CMB)
111
GP
26
10
0
0
STCH
Zarlink Semiconductor Inc.
25
9
RESERVED
0
9
Function
MSG
ZL50074
VAR
CD
OT
FH
OT
OT
STCH
24
0
8
8
32
STCH
23
0
7
7
Description
Output is tri-stated
Output drives high always
Output is in message mode
Variable delay connection mode
Constant delay connection mode
Reserved. Do not use.
Output is tri-stated
Output is tri-stated
STCH
22
6
0
6
STCH
21
5
0
5
Description
STCH
20
4
0
4
STCH
19
3
0
3
STCH
18
0
2
2
STCH
Data Sheet
17
0
1
1
STCH
16
0
0
0