TMS570LS3137 datasheet(30/173 Pages) TI1

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TMS570LS3137

SPNS162C – APRIL 2012 – REVISED APRIL 2015

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4.3.2.12 External Memory Interface (EMIF)

Table 4-34. External Memory Interface (EMIF)

TERMINAL

RESET

SIGNAL

PULL

PULL TYPE

DESCRIPTION

337

TYPE

SIGNAL NAME

STATE

ZWT

EMIF_CKE

Output

None

EMIF Clock Enable

EMIF clock. This is an output

signal in functional mode. It is

Pulldown

gated off by default, so that

EMIF_CLK

I/O

None

the signal is tri-stated.

PINMUX29[8] must be

cleared to enable this output.

ETMDATA[13]/EMIF_nOE

E12

Pulldown

None

EMIF Output Enable

Fixed 20 µA

EMIF_nWAIT

I/O

Pullup

EMIF Extended Wait Signal

Pullup

EMIF_nWE

D17

Output

EMIF Write Enable.

EMIF_nCAS

Output

Pullup

EMIF column address strobe

EMIF_nRAS

Output

EMIF row address strobe

EMIF_nCS[0]/RTP_DATA[15]/N2HET2[7]

N17

Output

Pulldown

EMIF chip select, SDRAM

EMIF_nCS[2]

L17

Output

Pullup

EMIF chip selects,

asynchronous

EMIF_nCS[3]/RTP_DATA[14]/N2HET2[9]

K17

Output

Pulldown

This applies to chip selects 2,

3, and 4

EMIF_nCS[4]/RTP_DATA[7]

M17

Output

Pullup

ETMDATA[15]/EMIF_nDQM[0]

E10

Output

EMIF Data Mask or Write

Strobe.

Data mask for SDRAM

devices, write strobe for

ETMDATA[14]/EMIF_nDQM[1]

E11

Output

connected asynchronous

devices.

EMIF bank address or

ETMDATA[12]/EMIF_BA[0]

E13

Output

address line

EMIF bank address or

EMIF_BA[1]/N2HET2[5]

D16

Output

address line

EMIF_ADDR[0]/N2HET2[1]

Output

EMIF_ADDR[1]/N2HET2[3]

Output

ETMDATA[11]/EMIF_ADDR[2]

Output

ETMDATA[10]/EMIF_ADDR[3]

Output

None

ETMDATA[9]/EMIF_ADDR[4]

Output

Pulldown

ETMDATA[8]/EMIF_ADDR[5]

Output

EMIF_ADDR[6]/RTP_DATA[13]/N2HET2[11]

Output

EMIF_ADDR[7]/RTP_DATA[12]/N2HET2[13]

Output

EMIF_ADDR[8]/RTP_DATA[11]/N2HET2[15]

Output

EMIF_ADDR[9]/RTP_DATA[10]

Output

EMIF_ADDR[10]/RTP_DATA[9]

Output

EMIF address

EMIF_ADDR[11]/RTP_DATA[8]

Output

EMIF_ADDR[12]/RTP_DATA[6]

C10

Output

EMIF_ADDR[13]/RTP_DATA[5]

C11

Output

EMIF_ADDR[14]/RTP_DATA[4]

C12

Output

EMIF_ADDR[15]/RTP_DATA[3]

C13

Output

EMIF_ADDR[16]/RTP_DATA[2]

D14

Output

EMIF_ADDR[17]/RTP_DATA[1]

C14

Output

EMIF_ADDR[18]/RTP_DATA[0]

D15

Output

EMIF_ADDR[19]/RTP_nENA

C15

Output

Pulldown

EMIF_ADDR[20]/RTP_nSYNC

C16

Output

EMIF_ADDR[21]/RTP_CLK

C17

Output

Terminal Configuration and Functions

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