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MT90500
100
Table 49 - TDM I/O Register
Address: 6004 (Hex)
Label: CORSIG
Reset Value: 0000 (Hex)
Label
Bit Position
Type
Description
CORSIGACNF
1:0
R/W
CORSIGA Configuration. Selects operation of the CORSIGA pin.
“00” General I/O pin configured as input (see CORSIGA bit in register 6002h)
“01” General I/O pin configured as programmable output (see CORSIGA bit in this
register)
“10” Reserved
“11” CLKFAIL I/O (see CFAIL at 6002h) - zero driven out when the MT90500 is clock
master; CLKFAIL input from SCSA bus when in slave mode or inactive clock master
alternate.
CORSIGBCNF
3:2
R/W
CORSIGB Configuration.
“00” General I/O pin configured as input
“01” General I/O pin configured as programmable output (see CORSIGB bit in this
register)
“10” MC: I/O for SCSA message channel (RXDATA sent to CORSIGD; TXDATA read
from CORSIGC
“11” FNXI: SRTS FNX Network Clock Input.
CORSIGCCNF
5:4
R/W
CORSIGC Configuration.
“00” General I/O pin configured as input
“01” General I/O pin configured as programmable output (see CORSIGC bit in this
register)
“10” HDLC MCTX: data input for SCSA message channel
“11” SRTS ENA output (there is a valid SRTS bit being transmitted on CORSIGD).
CORSIGDCNF
7:6
R/W
CORSIGD Configuration.
“00” General I/O pin configured as input
“01” General I/O pin configured as programmable output (see CORSIGD bit in this
register)
“10” HDLC MCRX: data output for SCSA message channel
“11” SRTS DATA output from the clock recovery module.
CORSIGECNF
9:8
R/W
CORSIGE Configuration.
“00” General I/O pin configured as input
“01” General I/O pin configured as programmable output (see CORSIGE bit in this
register)
“10” HDLC MCCLK: clock output for SCSA message channel
“11” Reserved.
Reserved
10
R/W
Reserved. Should be set to ‘0’.
CORSIGA
11
R/W
Value that will be driven on CORSIGA output pin (only applicable if CORSIGACNF=“01”).
CORSIGB
12
R/W
Value that will be driven on CORSIGB output pin (only applicable if CORSIGBCNF=“01”).
CORSIGC
13
R/W
Value that will be driven on CORSIGC output pin (only applicable if CORSIGCCNF=“01”).
CORSIGD
14
R/W
Value that will be driven on CORSIGD output pin (only applicable if CORSIGDCNF=“01”).
CORSIGE
15
R/W
Value that will be driven on CORSIGE output pin (only applicable if CORSIGECNF=“01”).