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General-Purpose Interface Register Manual
Table 25-15. GPIO_SYSCONFIG
Address Offset
0x010
Physical Address
0x4831 0010
Instance
GPIO1
0x4905 0010
GPIO2
0x4905 2010
GPIO3
0x4905 4010
GPIO4
0x4905 6010
GPIO5
0x4905 8010
GPIO6
Description
This register controls the various parameters of the L4 interconnect.
Type
RW
31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10
9
8
7
6
5
4
3
2
1
0
RESERVED
AUTOIDLE
IDLEMODE
SOFTRESET
ENAWAKEUP
Bits
Field Name
Description
Type
Reset
31:5
RESERVED
Write 0s for future compatibility. Read returns 0
RW
0x0000000
4:3
IDLEMODE
Power Management, Req/Ack control
RW
0x0
0x0: Force-idle. An idle request is acknowledged
unconditionally
0x1: No-idle. An idle request is never acknowledged
0x2: Smart-idle. Acknowledgment to an idle request is
given based on the internal activity of the module
0x3: Reserved do not use
2
ENAWAKEUP
Wake-up capability enabled/disabled
RW
0x0
0x0: Wakeup disable
0x1: Wakeup enable
1
SOFTRESET
Software reset. This bit is automatically reset by the
RW
0x0
hardware. During reads, it always returns 0.
0x0: Normal mode
0x1: The module is reset
0
AUTOIDLE
Internal interface clock gating strategy
RW
0x0
0x0: Interface clock is free-running
0x1: Automatic interface clock gating strategy is applied,
based on the L4 interconnect activity
Table 25-16. Register Call Summary for Register GPIO_SYSCONFIG
General-Purpose Interface Integration
•
•
System Power Management and Wake-Up
•
General-Purpose Interface Functional Description
•
Asynchronous Path: Wake-Up Request Generation
General-Purpose Interface Basic Programming Model
•
General-Purpose Interface Register Manual
•
General-Purpose Interface Register Mapping Summary
3491
SWPU177N – December 2009 – Revised November 2010
General-Purpose Interface
Copyright © 2009–2010, Texas Instruments Incorporated