GMS30C2116 Datasheet, PDF (140/322 Pages) Hynix Semiconductor – USERS MANUAL

6-18
6.6 Function Control Register FCR (continued)
CHAPTER 6
Bits Name
15..14
13..12 IO3Control
11
10
IO3Direction
9
IO3Polarity
8
IO3Mask
7
6
IO2Direction
5
IO2Polarity
4
IO2Mask
3
2
IO1Direction
1
IO1Polarity
0
IO1Mask
Description
reserved
IO3 Control State:
11 = IO3Standard Mode
10 = Watchdog Mode
01 = IO3Timing Mode
00 = IO3TimerInterrupt Mode
reserved
1 = Input
0 = Output
1 = Non-Inverted
0 = Inverted
On Input:
1 = IO3 Interrupt Disabled
0 = IO3 Interrupt Enabled
On Output:
1 = IO3 Output reflects IO3Polarity
0 = Reserved
reserved
1 = Input
0 = Output
1 = Non-Inverted
0 = Inverted
On Input:
1 = IO2 Interrupt Disabled
0 = IO2 Interrupt Enabled
On Output:
1 = IO2 Output reflects IO2Polarity
0 = Reserved
reserved
1 = Input
0 = Output
1 = Non-Inverted
0 = Inverted
On Input:
1 = IO1 Interrupt Disabled
0 = IO1 Interrupt Enabled
On Output:
1 = IO1 Output reflects IO1Polarity
0 = Output reflects Supervisor Flag XOR NOT IO1Polarity
Table 6.6: Function Control Register FCR