GPMC
7.1.3 Functional Description
7.1.3.1
GPMC Signals
shows the use of address and data GPMC controller pins based on the type of external device.
Table 7-5. GPMC Pin Multiplexing Options
Non Multiplexed
Non Multiplexed
Multiplexed
16-Bit NAND
GPMC Signal
Address Data 16-
Address Data 8-Bit
Address Data 16-
8-Bit NAND Device
Device
Bit Device
(1)
Device
Bit Device
(1)
GPMC_A[27]
A26
A27
A26
Not Used
Not Used
GPMC_A[26]
A25
A26
Not Used
Not Used
Not Used
GPMC_A[25]
A24
A25
Not Used
Not Used
Not Used
GPMC_A[24]
A23
A24
Not Used
Not Used
Not Used
GPMC_A[23]
A22
A23
Not Used
Not Used
Not Used
GPMC_A[22]
A21
A22
Not Used
Not Used
Not Used
GPMC_A[21]
A20
A21
Not Used
Not Used
Not Used
GPMC_A[20]
A19
A20
Not Used
Not Used
Not Used
GPMC_A[19]
A18
A19
Not Used
Not Used
Not Used
GPMC_A[18]
A17
A18
Not Used
Not Used
Not Used
GPMC_A[17]
A16
A17
Not Used
Not Used
Not Used
GPMC_A[16]
A15
A16
Not Used
Not Used
Not Used
GPMC_A[15]
A14
A15
Not Used
Not Used
Not Used
GPMC_A[14]
A13
A14
Not Used
Not Used
Not Used
GPMC_A[13]
A12
A13
Not Used
Not Used
Not Used
GPMC_A[12]
A11
A12
Not Used
Not Used
Not Used
GPMC_A[11]
A10
A11
Not Used
Not Used
Not Used
GPMC_A[10]
A9
A10
A25
Not Used
Not Used
GPMC_A[9]
A8
A9
A24
Not Used
Not Used
GPMC_A[8]
A7
A8
A23
Not Used
Not Used
GPMC_A[7]
A6
A7
A22
Not Used
Not Used
GPMC_A[6]
A5
A6
A21
Not Used
Not Used
GPMC_A[5]
A4
A5
A20
Not Used
Not Used
GPMC_A[4]
A3
A4
A19
Not Used
Not Used
GPMC_A[3]
A2
A3
A18
Not Used
Not Used
GPMC_A[2]
A1
A2
A17
Not Used
Not Used
GPMC_A[1]
A0
A1
A16
Not Used
Not Used
GPMC_A[0]
Not Used
A0
Not Used
Not Used
Not Used
GPMC_AD[15]
D15
Not Used
A/D[15]
D15
Not Used
GPMC_AD[14]
D14
Not Used
A/D[14]
D14
Not Used
GPMC_AD[13]
D13
Not Used
A/D[13]
D13
Not Used
GPMC_AD[12]
D12
Not Used
A/D[12]
D12
Not Used
GPMC_AD[11]
D11
Not Used
A/D[11]
D11
Not Used
GPMC_AD[10]
D10
Not Used
A/D[10]
D10
Not Used
GPMC_AD[9]
D9
Not Used
A/D[9]
D9
Not Used
GPMC_AD[8]
D8
Not Used
A/D[8]
D8
Not Used
GPMC_AD[7]
D7
D7
A/D[7]
D7
D7
GPMC_AD[6]
D6
D6
A/D[6]
D6
D6
GPMC_AD[5]
D5
D5
A/D[5]
D5
D5
(1)
The values in this column represent the signals on the memory. Be aware that some 16-bit memories may label the address
lines differently. Some label the LSB as A0, while others use A1 for the LSB. These columns assume the LSB is A0.
256 Memory Subsystem
SPRUH73H – October 2011 – Revised April 2013
Copyright © 2011–2013, Texas Instruments Incorporated