參數(shù)資料
型號(hào)： SAF82526
廠商： INFINEON TECHNOLOGIES AG
英文描述： Data Communications ICs
中文描述： 數(shù)據(jù)通信集成電路
文件頁數(shù)： 98/126頁
文件大?。?/td> 730K
代理商： SAF82526
Semiconductor Group
98
SAB 82525
SAB 82526
SAF 82525
SAF 82526
Receive HDLC Control Register (READ)
RHCR
(29/69)
7
0
RHCR
Value of the HDLC control field corresponds to the last received frame.
RHCR is duplicated into RFIFO for every frame.
Note:
Mode
Auto-mode,1-byte address
(U-frames) (Note 1)
Auto-mode, 2-byte address
(U-frames) (Note 1)
Auto-mode, 1-byte address
(
I
-frames) (Note 1)
Auto-mode, 2-byte address
(
I
-frames) (Note 1)
Modulo 8 (MCS = 0)
Control field
Control field
Control field
Control field
Modulo 128 (MCS = 1)
Control field
(Note 2)
Control field
(Note 2)
Control field in
compressed form (Note 3)
Control field in
compressed form (Note 3)
Contents of RHCR
Non-auto mode,
1-byte address
Non-auto mode,
2-byte address
Transparent
mode 1
Transparent
mode 0
2
nd
byte after flag
3
rd
byte after flag
3
rd
byte after flag
2
nd
byte after flag
S-frames are handled automatically and are not transferred to the microprocessor.
Note 1:
For
I
-frames (bit 0 of RHCR = 0) the compressed control field has the same format
as in the modulo 8 case, but only the three LSB’s of the receive and transmit
counters are visible:
Note 3:
For U-frames (bit 0 of RHCR = 1) the control field is as in the modulo 8 case.
Note 2:
N(R)
P
N(S)
0
bit
7
6
5
4
3
2
1
0
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參數(shù)描述
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