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Chapter 3
Programming Model
The system controller CPLD contains many registers that may be used to monitor and control both the processor and hardware
on the LS1046ARDB. A
3
-pin header on the board allows remote monitoring/control of the system. This chapter explains each of
the registers in the register block.
This table shows the register memory map for system controller CPLD.
The base address for the CPLD registers is 0x7fb00000.
NOTE
Offset
Register
Width
(in bits)
Access
Reset value
0h
CPLD Major Revision Register (CPLD_VER)
8
RO
80h
1h
CPLD Minor Revision Register (CPLD_VER_SUB)
8
RO
00h
2h
PCBA Revision Register (PCBA_VER)
8
RO
80h
3h
System Hardware Reset Register (REG_SYSTEM_RST)
8
RW
00h
4h
CPLD Registers Take Effect Enable Register (REG_SOFT_MUX_
ON)
8
RW
00h
5h
RCW Source Location POR Register 1 (REG_CFG_RCW_SRC1)
8
RW
00h
6h
RCW Source Location POR Register 2 (REG_CFG_RCW_SRC2)
8
RW
00h
7h
QSPI Flash Bank Setting Register (REG_QSPI_BANK)
8
RW
00h
8h
System clock POR Register (REG_SYSCLK_SEL)
8
RW
00h
9h
UART1 Connection Control Register (REG_UART1_SEL)
8
RW
00h
Ah
SerDes1 Reference Clock2 Setting Register (REG_SD1REFCLK_SE
L)
8
RW
00h
Bh
Ethernet Controller 2 Connection Control Register (REG_RGMII_15
88_SEL)
8
RW
80h
Ch
1588 Clock Source Control Register (REG_1588_CLK_SEL)
8
RW
00h
Dh
STATUS LED Control Register (REG_STATUS_LED)
8
RW
00h
Eh
System Hardware Reset Register (REG_GLOBAL_RST)
8
RW
00h
Fh
SD or EMMC Interface Control Register (REG_SD_EMM)
8
RW
00h
10h
VDD Voltage Control Register Take Effect Enable Register (REG_
VDD_EN)
8
RW
00h
11h
VDD Voltage Control Register (REG_VDD_SEL)
8
RW
00h
12h
SFP+ Module Tx Enable Register (REG_SFP_TXEN)
8
RW
00h
13h
SFP+ Module Status Register (REG_SFP_STATUS)
8
RO
00h
Programming Model
QorIQ LS1046A Reference Design Board Reference Manual, Rev. 2, 30 May 2019
42
NXP Semiconductors