HFC-4S Cologne Chip AG, HFC-4S Datasheet - Page 91

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

2.7.2 Read only registers
March 2003 (rev. A)
HFC-4S
HFC-8S
R_RAM_USE
SRAM duty factor
Usage of SRAM access bandwidth by the internal data processor.
7..0
R_RAM_DATA
SRAM data access
Direct access to internal / external SRAM
7..0
Bits
Bits
0
Value
Value
Reset
Reset
V_SRAM_USE
V_RAM_DATA
Name
Name
Universal external bus interface
(read / write)
(read only)
Data Sheet
Description
Relative duty factor
0x00 = 0% bandwidth used
0x7C = 100% bandwidth used
Description
SRAM data access
The address must be written into the registers
R_RAM_ADDR0 . . . R_RAM_ADDR2 in
advance.
Cologne
Chip
91 of 273
0xC0
0x15