HFC-4S Cologne Chip AG, HFC-4S Datasheet - Page 168

• Manufacturer Part Number: HFC-4S
• Description: Isdn HDLC Fifo Controller With 8 (4) Integrated S/t Interfaces
• Manufacturer: Cologne Chip AG

HFC-4S
HFC-8S
5.6.2 Read only registers
168 of 273
A_ST_D_TX [ST]
Transmit register for the D-channel data
This register is written automatically by the flow controller and need not be accessed by
the user. FIFOs should be used to write data.
Before writing this array register the S/T interface must be selected by register R_ST_SEL.
5..0
7..6
R_SCI
State change interrupt register of the S/T interfaces
Reports the S/T interfaces where the state has changed. Reading this register clears the
bits.
0
1
2
3
4
5
6
7
Bits
Bits
0
0
0
0
0
0
0
0
0
Value
Value
Reset
Reset
Name
(reserved)
V_ST_D_TX
Name
V_SCI_ST0
V_SCI_ST1
V_SCI_ST2
V_SCI_ST3
V_SCI_ST4
V_SCI_ST5
V_SCI_ST6
V_SCI_ST7
S/T interface
(write only)
(read only)
Data Sheet
Description
Must be ’000000’.
D-channel data bits
Description
State change interrupt occured in S/T interface 0
State change interrupt occured in S/T interface 1
State change interrupt occured in S/T interface 2
State change interrupt occured in S/T interface 3
State change interrupt occured in S/T interface 4
State change interrupt occured in S/T interface 5
State change interrupt occured in S/T interface 6
State change interrupt occured in S/T interface 7
March 2003 (rev. A)
Cologne
Chip
0x3E
0x12