
129
GPIO Registers
DesignWare ARC AXC003 CPU Card User Guide
Version 6323-018
Synopsys, Inc.
May 2017
23:16
UPPER_7SEG
RW
0*
Controls the upper seven-segment display on the AXC003
CPU Card. A segment of the display is on when its control
bit is set to
1
.
31:24
LOWER_7SEG
RW
0*
Controls the lower seven-segment display. A segment of
the display is on when its control bit is set to
1
.
GPIO_EXT_PORTA: GPIO Port A Input Register
Address offset:
0x3050
Reset value:
0x00FD_0000
Table 43
GPIO Port A Input Register (GPIO_EXT_PORTA)
Legend: * reset value
Bit
Name
Access
Value
Description
11:0
R
0x0*
Reserved
12
MB_IntrReq
R
0x0*
Connected to the interrupt controller of the ARC SDP
Mainboard.
Can be used to provide an interrupt from the peripheral
subsystem of the ARC SDP Mainboard to a core on
the AXC003 CPU Card.
This is bit is configured as a level sensitive, active low
interrupt.
15:13
R
0x0*
Reserved