
DS3181/DS3182/DS3183/DS3184
320
12.12.2 Receive Side PLCP Register Map
The receive side uses 13 registers.
Table 12-44. Receive Side PLCP Register Map
ADDRESS
REGISTER
REGISTER DESCRIPTION
(1,3,5,7)60h
PLCP Receive Control Register
(1,3,5,7)62h
—
Unused
(1,3,5,7)64h
PLCP Receive Status Register 1
(1,3,5,7)66h
PLCP Receive Status Register 2
(1,3,5,7)68h
PLCP Receive Status Register Latched 1
(1,3,5,7)6Ah
PLCP Receive Status Register Latched 2
(1,3,5,7)6Ch
PLCP Receive Status Register Interrupt Enable 1
(1,3,5,7)6Eh
PLCP Receive Status Register Interrupt Enable 2
(1,3,5,7)70h
PLCP Receive Framing Error Count Register
(1,3,5,7)72h
PLCP Receive P-Bit Parity Error Count Register
(1,3,5,7)74h
PLCP Receive Remote Error Indication Count Register
(1,3,5,7)76h
PLCP Receive F1 and G1 Byte Register
(1,3,5,7)78h
PLCP Receive M1 and M2 Byte Register
(1,3,5,7)7Ah
PLCP Receive Z1 and Z2 Byte Register
(1,3,5,7)7Ch
PLCP Receive Z3 and Z4 Byte Register
(1,3,5,7)7Eh
PLCP Receive Z5 and Z6 Byte Register
12.12.2.1 Register Bit Descriptions
Register Name:
PLCP.RCR
Register Description:
PLCP Receive Control Register
Register Address:
(1,3,5,7)60h
Bit #
15
14
13
12
11
10
9
8
Name
—
RHSC1
RHSC0
Default
0
Bit #
7
6
5
4
3
2
1
0
Name
—
RLIE
—
PECC
FEPD
FECC
ECC
FRSYNC
Default
0
Bits 9 to 8: Receive HDLC Source Control (RHSC[1:0]) – These two bits control the source of the receive HDLC
controller.
00 = F1 byte.
01 = M1 byte.
10 = M2 byte.
11 = M2 and M1 byte.
Bit 6: Receive LOF Integration Enable (RLIE) – When 0, the receive Loss Of Frame (LOF) integration counter is
disabled. When 1, the receive LOF integration counter is enabled.
Bit 4: Parity Error Count Control (PECC) – When 0, BIP-8 (B1 byte) bit errors are detected (up to 8 per frame).
When 1, BIP-8 block errors are detected (no more than one per frame). Note: The transmit REI bits are affected by
the setting of this bit as the REI bits reflect the number of BIP-8 errors detected/counted.
Bit 3: Framing Error POI Disable (FEPD) – When 0, Path Overhead Indicator (POI) byte (P#) and framing
alignment byte (A1 & A2) errors are detected. When 1, only A1 & A2 errors are detected. Note: This bit is ignored
when OOF events are counted (FECC=1)
Bit 2: Framing Error Count Control (FECC) – This bit controls the type of framing error events that are counted.
When 0, A1 byte errors, A2 byte errors, and P# byte errors (up to 3 per sub-frame) are counted. When 1, OOF
events are counted.