HFC-S2M Cologne Chip AG, HFC-S2M Datasheet - Page 143

• Manufacturer Part Number: HFC-S2M
• Description: Isdn HDLC Fifo Controller With Primary Rate Interface
• Manufacturer: Cologne Chip AG

4.4.3 Read / write registers
March 2003 (rev. A)
HFC-E1
A_FIFO_DATA0 [FIFO]
FIFO data register
This address can also be accessed with word and double word width to access
two or four data bytes (see registers A_FIFO_DATA1 and A_FIFO_DATA2).
Before writing or reading this array register the FIFO must be selected by the
register R_FIFO.
7..0
A_FIFO_DATA1 [FIFO]
FIFO data register
Before writing or reading this array register the FIFO must be selected by the
register R_FIFO.
15..0
Bits
Bits
0
0
Value
Value
Reset
Reset
V_FIFO_DATA0
V_FIFO_DATA1
Name
Name
FIFO handling and HDLC controller
(read / write)
(read / write)
Data Sheet
Description
Data byte
Read / write one byte from / to the FIFO selected in
the R_FIFO register and increment -counter by 1.
Description
Data word
Read / write one word from / to the FIFO selected in
the R_FIFO register and increment -counter by 2.
Cologne
Chip
143 of 272
0x80
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