GPMC
Table 7-65. GPMC_CONFIG1_i Field Descriptions (continued)
Bit
Field
Value Description
22
WAITREADMONITORING
Selects the Wait monitoring configuration for Read accesses
0
WAIT pin is not monitored for read accesses
1
WAIT pin is monitored for read accesses
21
WAITWRITEMONITORING
Selects the Wait monitoring configuration for Write accesses
0
WAIT pin is not monitored for write accesses
1
WAIT pin is monitored for write accesses
20
Reserved
0
Reserved
19-18
WAITMONITORINGTIME
Selects input pin Wait monitoring time
0
WAIT pin is monitored with valid data
1h
WAIT pin is monitored one GPMC_CLK cycle before valid data
2h
WAIt pin is monitored two GPMC_CLK cycle before valid data
3h
Reserved
17-16
WAITPINSELECT
Selects the input WAIT pin for this chip select
0
WAIT input pin is WAIT0
1h
WAIT input pin is WAIT1
2h
Reserved
3h
Reserved
15-14
Reserved
0
Reserved
13-12
DEVICESIZE
Selects the device size attached.
0
8 bit
1h
16 bit
2h
Reserved
3h
Reserved
11-10
DEVICETYPE
Selects the attached device type
0
NOR Flash like, asynchronous and synchronous devices
1h
Reserved
2h
NAND Flash like devices, stream mode
3h
Reserved
9-8
MUXADDDATA
Enables the Address and data multiplexed protocol (Reset value is
SYSBOOT[11:10] input pin sampled at IC reset for CS[0] and 0 for CS[1-6])
0
Non-multiplexed attached device
1h
AAD-multiplexed protocol device
2h
Address and data multiplexed attached device
3h
Reserved
7-5
Reserved
0
Reserved
4
TIMEPARAGRANULARITY
Signals timing latencies scalar factor (Rd/WRCycleTime, AccessTime,
PageBurstAccessTime, CSOnTime, CSRd/WrOffTime, ADVOnTime,
ADVRd/WrOffTime, OEOnTime, OEOffTime, WEOnTime, WEOffTime,
Cycle2CycleDelay, BusTurnAround, TimeOutStartValue)
0
×1 latencies
1
×2 latencies
3-2
Reserved
0
Reserved
1-0
GPMCFCLKDIVIDER
Divides the GPMC.FCLK clock
0
GPMC_CLK frequency = GPMC_FCLK frequency
1h
GPMC_CLK frequency = GPMC_FCLK frequency/2
2h
GPMC_CLK frequency = GPMC_FCLK frequency/3
3h
GPMC_CLK frequency = GPMC_FCLK frequency/4
376
Memory Subsystem
SPRUH73H – October 2011 – Revised April 2013
Copyright © 2011–2013, Texas Instruments Incorporated