HFC-U Cologne Chip AG, HFC-U Datasheet - Page 9

• Manufacturer Part Number: HFC-U
• Description: Isdn HDLC Basic Rate Controller
• Manufacturer: Cologne Chip AG

2.3
March 1997
Pin No.
65
66
67
68
69
70
71
72
74
75
76
77
78
50
79
80
82
83
Oscillator
SRA2
SRA3
SRA4
SRA5
SRA6
SRA7
SRA8
SRA9
SRA10
SRA11
SRA12
SRA13
SRA14
/SRDS
/SRCS
/SRWR
OSC_IN
OSC_OUT
Pin Name
Tristate
Output
Input
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
I
SRAM address bus bit 2
SRAM address bus bit 3
SRAM address bus bit 4
SRAM address bus bit 5
SRAM address bus bit 6
SRAM address bus bit 7
SRAM address bus bit 8
SRAM address bus bit 9
SRAM address bus bit 10
SRAM address bus bit 11
SRAM address bus bit 12
SRAM address bus bit 13
SRAM address bus bit 14 (MSB)
SRAM control signals
Data strobe to external device
SRAM chip select
SRAM write enable
Function
Oscillator input or quarz connection
12.288 Mhz for HFC-U with PCM30 bus function
Oscillator output or quarz connection
HFC-U
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