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94 XVR16*4th Generation Intel® Core™ i7 Based Rugged VME Single Board Computer
Publication No.
500-9300007876-000
Rev. C.0
The value of this register is driven onto the GPIO pins when the direction mode is
set to output.
This register returns the status of the GPIO pins, regardless of the direction mode.
Table 8-29 Timer 1 Data Byte 3 (MSB) (0x65F)
Bit
R/W
Description
Default
7:0
R/W
Read value depends on CSR1(3).
If '0' - Contains Bits 31-24 of the Timer current counter
value
If '1' - Contains Bits 31-24 of the Timer load value
Reading this register latches the upper bits of the count
value to prevent rollover. Write always updates Timer
load value.
0x00
Table 8-30 GPIO 7-0 OUT Register (0x670)
Bit
R/W
Description
Default
7:0
R/W
GPIO7:GPIO0
0x00
Table 8-31 GPIO 7-0 IN Register (0x671)
Bit
R/W
Description
Default
7:0
R/W
GPIO7:GPIO0
0x00
Table 8-32 GPIO 7-0 Direction Register (0x672)
Bit
R/W
Description
Default
7:0
R/W
GPIO7:GPIO0
1 = Output
0 = Input
0x00
Table 8-33 GPIO 7-0 Interrupt Enable Register (0x673)
Bit
R/W
Description
Default
7:0
R/W
GPIO7:GPIO0
1 = Interrupt enabled
0 = Interrupt masked
0x00