GPMC
7.1.5.11 GPMC_CONFIG1_i
The configuration 1 register sets signal control parameters per chip select.
Figure 7-61. GPMC_CONFIG1_i
31
30
29
28
27
26
25
24
WRAPBURST
READMULTIPLE
READTYPE
WRITEMULTIPLE
WRITETYPE
CLKACTIVATIONTIME
ATTACHEDDEVICE
PAGELENGTH
R/W-0
R/W-0
R/W-0
R/W-0
R/W-0
R/W-0
R/W-0
23
22
21
20
19
18
17
16
ATTACHEDDEVICE
WAITREADMONITOR WAITWRITEMONITO
Reserved
WAITMONITORINGTIME
WAITPINSELECT
PAGELENGTH
ING
RING
R/W-0
R/W-0
R/W-0
R-0
R/W-0
R/W-0
15
14
13
12
11
10
9
8
Reserved
DEVICESIZE
DEVICETYPE
MUXADDDATA
R-0
R/W-0
R/W-0
R/W-0
7
5
4
3
2
1
0
Reserved
TIMEPARA
Reserved
GPMCFCLKDIVIDER
GRANULARITY
R-0
R/W-0
R-0
R/W-0
LEGEND: R = Read only; W1C = Write 1 to clear bit; -n = value after reset
Table 7-65. GPMC_CONFIG1_i Field Descriptions
Bit
Field
Value Description
31
WRAPBURST
Enables the wrapping burst capability. Must be set if the attached device is
configured in wrapping burst
0
Synchronous wrapping burst not supported
1
Synchronous wrapping burst supported
30
READMULTIPLE
Selects the read single or multiple access
0
single access
1
multiple access (burst if synchonous, page if asynchronous)
29
READTYPE
Selects the read mode operation
0
Read Asynchronous
1
Read Synchronous
28
WRITEMULTIPLE
Selects the write single or multiple access
0
Single access
1
Multiple access (burst if synchronous, considered as single if asynchronous)
27
WRITETYPE
Selects the write mode operation
0
Write Asynchronous
1
Write Synchronous
26-25
CLKACTIVATIONTIME
Output GPMC.CLK activation time
0
First rising edge of GPMC_CLK at start access time
1h
First rising edge of GPMC_CLK one GPMC_FCLK cycle after start access
time
2h
First rising edge of GPMC_CLK two GPMC_FCLK cycles after start access
time
3h
Reserved
24-23
ATTACHEDDEVICEPAGELENGTH
Specifies the attached device page (burst) length (1 Word = Interface size)
0
4 Words
1h
8 Words
2h
16 Words
3h
Reserved
375
SPRUH73H – October 2011 – Revised April 2013
Memory Subsystem
Copyright © 2011–2013, Texas Instruments Incorporated