TMS570LS3137
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SPNS162.–SEPTEMBER 2011
2.4.2.12 External Memory Interface (EMIF)
Table 2-34. External Memory Interface (EMIF)
Terminal
Signal
Type
Default
Pull State
Pull Type
Description
Signal Name
337
ZWT
EMIF_CKE
EMIF_CLK
L3
K3
Output Pull Down
I/O
-
EMIF Clock Enablen
EMIF clock. This is an
output signal in functional
mode. It is gated off by
default, so that the signal
is tri-stated. PINMUX29[8]
must be cleared to enable
this output.
EMIF_nWE/EMIF_RNW
D17
E12
P3
Output Pull Up
Pull Down
-
EMIF Read-Not-Write
EMIF Read Enable
ETMDATA[13]/EMIF_nOE
-
EMIF_nWAIT
I/O
Pull Up
Fixed, 20uA
EMIF Extended Wait
Signal
EMIF_nWE/EMIF_RNW
D17
R4
Output Pull Up
Output
-
EMIF Write Enable.
EMIF_nCAS
EMIF column address
strobe
EMIF_nRAS
R3
Output
Output
EMIF row address strobe
EMIF_nCS[0]/RTP_DATA[15]/N2HET2[7]
N17
EMIF chip select,
synchronous
EMIF_nCS[2]
L17
K17
M17
Output
Output
Output
EMIF chip selects,
asynchronous
This applies to chip
selects 2, 3 and 4
EMIF_nCS[3]/RTP_DATA[14]/N2HET2[9]
EMIF_nCS[4]/RTP_DATA[07]
Copyright © 2011, Texas Instruments Incorporated
Device Package and Terminal Functions
31
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