RM0082
RS_Reconfigurable array subsystem (RAS) registers
Doc ID 018672 Rev 1
659/844
Note:
If the register bit is '1', then the particular IP in the fixed part will be connected to PL_GPIO.
If the register bit is '0', then RAS_GPIO will be connected to PL_GPIO.
30.4.2
RAS Register 2 (0x99000004)
This register is used to select between different modes of the RAS IPs.
[12]
1’h0
SSP enhanced (CS(2-3-4))
[11]
1’h0
SSP Basic (no CS(2-3-4))
[10]
1’h0
MAC Ethernet
[09]
1’h0
basGPIO (0)
[08]
1’h0
basGPIO(1)
[07]
1’h0
basGPIO(2)
[06]
1’h0
basGPIO(3)
[05]
1’h0
basGPIO(4)
[04]
1’h0
basGPIO(5)
[03]
1’h0
UART enhanced (also others UART signals, such as DCD....)
[02]
1’h0
UART basic (only RX & TX signals)
[01]
1’h0
Timer B (timers 3/4)
[00]
1’h0
Timer A (timers 1/2)
Table 588.
RAS Register 1 description
Field
Default
Value
Description
Table 589.
RAS Register 2 description
Field
Default
Value
Description
[31]
1’h0
This bit is used for configuring the 48 MHz clock source for CLCD block.
'1' - Clock from external source (PL_CLK1)
'0' - 48 MHz clock
[30]
1’h0
This bit is used for configuring the ExtDevWidth input port of FSMC.
'1' - ExtDevWidth = 2'b01 => 16 bit external bus
'0' - ExtDevWidth = 2'b00 => 8 bit external bus
[29]
1’h0
This bit is used for configuring the accessibility of memory through either
SDIO or I2S.
'1' - SDIO is using the memory
'0' - I2S is using the memory
[28]
1’h0
This bit is used for muxing the DAC O1, O2 ports and the GPIO10_3 and
GPIO10_2 ports from the telecom block. This muxing is happening only when
LEND_IP_PHONE or HEND_IP_PHONE or LEND_WIFI_PHONE or
HEND_WIFI_PHONE is selected.
'
1' - GPIO10s from TELECOM
'0' - DAC ports