RELEASED
PM7366 FREEDM-8
DATA SHEET
PMC-1970930
ISSUE 4
FRAME ENGINE AND DATA LINK MANAGER
Register 0x490-0x49C : TCAS Link #4 to Link #7 Configuration
Bit
Type
Function
Default
Bit 31 to
Bit 16
Unused
XXXXH
Bit 15
Bit 14
Bit 13
Bit 12
Bit 11
Bit 10
Bit 9
Unused
Unused
Unused
Unused
Unused
Unused
Unused
Unused
Unused
Unused
Unused
Unused
Unused
Unused
E1
X
X
X
X
X
X
X
X
X
X
X
X
X
0
Bit 8
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
R/W
R/W
0
Bit 0
CEN
0
This register set configures operational modes of transmit link #4 to link # 7 (TD[n] / TCLK[n];
where 4 ? n ? 7ꢀ).
Note
This register is not byte addressable. Writing to this register modifies all the bits in the register.
Byte selection using byte enable signals (CBEB[3:0]) are not implemented. However, when all
four byte enables are negated, no access is made to this register.
CEN:
The channelise enable bit (CEN) configures the corresponding transmit link for channelised
operation. TCLK[n] is held quiescent during the T1 framing bit or the E1 framing byte. Thus,
on the first rising edge of TCLK[n] after the extended quiescent period, a downstream device
can sample the m.s.b. of time-slot 1. When CEN is set low, the corresponding link is
PROPRIETARY AND CONFIDENTIAL TO PMC-SIERRA,INC., AND FOR ITS CUSTOMERS’ INTERNAL USE
204
PMC [ PMC-SIERRA, INC ]
