HFC-S2M Cologne Chip AG, HFC-S2M Datasheet - Page 67
![no-image](/images/no-image-200.jpg)
HFC-S2M
Manufacturer Part Number
HFC-S2M
Description
Isdn HDLC Fifo Controller With Primary Rate Interface
Manufacturer
Cologne Chip AG
Datasheet
1.HFC-S2M.pdf
(272 pages)
- Current page: 67 of 272
- Download datasheet (3Mb)
Address and /BE0 (if not fixed to low) require a setup time
and byte enable signals are valid. The hold time of these lines is
March 2003 (rev. A)
HFC-E1
G
In some applications it may be difficult to implement a long read access
(
For this reason there is an alternative method with two register read ac-
cesses with
The short read method is practical for all read registers in
the address range 0xC0 . . . 0xFF, these target registers are
R_IRQ_FIFO_BL0 . . . R_IRQ_FIFO_BL7 and R_RAM_DATA.
Ø
1. The read access to the target register initiates a data transmission
2. . . . but the data byte is already internally buffered and can be read
Short read method
from the RAM to the target register. This job is always done cor-
rectly with long and short
yet ‘arrived’ at the target register. Thus the data which is read with a
short
from the register R_INT_DATA. This second register read access
can also be executed with a short
the first access to the second one
¡
Ø
Ø
Ø
ÄÃÁ
must be ignored . . .
) for only some registers (here called target register).
¾¼ Ò×
Universal external bus interface
each:
Data Sheet
Ø
, but after a short
Ø
Ø
Ä
must be met, of course.
¾¼ Ò×
Ø
Ë
. For the time from
which starts when all address
Ø
Ø
À
the data is not
.
Cologne
Chip
67 of 272
Related parts for HFC-S2M
Image
Part Number
Description
Manufacturer
Datasheet
Request
R
![HFC-S](/images/no-image3.png)
Part Number:
Description:
Isdn S/t HDLC Basic Rate Controller
Manufacturer:
Cologne Chip AG
Datasheet:
![HFC-S+](/images/no-image3.png)
Part Number:
Description:
Isdn S/t HDLC Basic Rate Controller
Manufacturer:
Cologne Chip AG
Datasheet:
![HFC-4S](/images/no-image3.png)
Part Number:
Description:
Isdn HDLC Fifo Controller With 8 (4) Integrated S/t Interfaces
Manufacturer:
Cologne Chip AG
Datasheet:
![HFC-SP](/images/no-image3.png)
Part Number:
Description:
Isdn S/t HDLC Basic Rate Controller
Manufacturer:
Cologne Chip AG
Datasheet:
![HFC-SPCI](/images/no-image3.png)
Part Number:
Description:
Isdn S/t HDLC Basic Rate Controller
Manufacturer:
Cologne Chip AG
Datasheet:
![HFC-SUSB](/images/no-image3.png)
Part Number:
Description:
Isdn S/t HDLC Basic Rate Controller
Manufacturer:
Cologne Chip AG
Datasheet:
![HFC-Smini](/images/no-image3.png)
Part Number:
Description:
Manufacturer:
Cologne Chip AG
Datasheet:
![HFC-U](/images/no-image3.png)
Part Number:
Description:
Isdn HDLC Basic Rate Controller
Manufacturer:
Cologne Chip AG
Datasheet: