6.1.16 TDM riser card presence detection register
(CPLD_TDMR_PRS_N)
Use this register to indicate whether or not a TDM riser card is present on the
LS1043ARDB board.
Address: 0h base + Fh offset = Fh
Bit
0
1
2
3
4
5
6
7
Read
Write
Reset
0
0
0
0
0
0
0
1
CPLD_TDMR_PRS_N field descriptions
Field
Description
0
TDMR_PRS_N
TDM riser card presence detection
0
TDM riser card is present
1
TDM riser card is not present (default value)
1–7
-
This field is reserved.
6.1.17 RTC clock assignment register (CPLD_REG_RTC)
Use this register to indicate if the RTC clock is assigned to RTC or TA_BB_RTC.
Address: 0h base + 10h offset = 10h
Bit
0
1
2
3
4
5
6
7
Read RTC_CLK_
Write
Reset
0
0
0
0
0
0
0
0
CPLD_REG_RTC field descriptions
Field
Description
0
RTC_CLK_
ASSGNMT
RTC clock assignment to RTC or TA_BB_RTC (only assert from LS1043ARDB Rev. B board)
0
To TA_BB_RTC (default value)
1
To RTC
Table continues on the next page...
Chapter 6 CPLD Programming
QorIQ LS1043A Reference Design Board Reference Manual, Rev. 0, 08/2015
Freescale Semiconductor, Inc.
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