Freescale-semiconductor MPC5200B Instrukcja Użytkownika Pobierz pdf (Strona 113)

MPC5200B Users Guide, Rev. 1

2-68 Freescale Semiconductor

Pinout Tables

Table 2-27. SDRAM Bus Pin Functions

PIN BALL NUMBER Function

Reset

Value

Description

Pin MEM_RAS

Ball A18

logic 0 SDRAM Bus Row Address Strobe

Pin MEM_CAS

Ball B19

logic 0 SDRAM Bus Column Address Strobe

Pin MEM_WE

Ball A19

logic 0 SDRAM Bus Write enable

Pin MEM_CS_0

Ball B18

logic 1 SDRAM Bus Chip Select 0

Pin MEM_CS_1

Ball C15 (GPIO_WKUP_6)

logic 1 SDRAM Bus Chip Select 1

(shared with GPIO_WKUP_6)

Pin MEM_CLK_EN

Ball F20

logic 0 SDRAM Bus Clock Enable

Pin MEM_CLK

Ball G19

logic 0 SDRAM Bus Memory Clock

Pin MEM_CLK

Ball G20

logic 1 SDRAM Bus Inverted Memory Clock

Pin MEM_MBA_1

Ball A17

logic 0 SDRAM Bus Memory Bank Address 1

Pin MEM_MBA_0

Ball C18

logic 0 SDRAM Bus Memory Bank Address 0

Pin MEM_MDQS_3

Ball L18

hi - z SDRAM Bus Bidirectional Data Bus Strobe 3

Pin MEM_MDQS_2

Ball D18

hi - z SDRAM Bus Bidirectional Data Bus Strobe 2

Pin MEM_MDQS_1

Ball

H20

hi - z SDRAM Bus Bidirectional Data Bus Strobe 1

Pin MEM_MDQS_0

Ball N20

hi - z SDRAM Bus Bidirectional Data Bus Strobe 0

Pin MEM_DQM_3

Ball L17

SDRAM Bus Data Mask 3

Pin MEM_DQM_2

Ball A20

SDRAM Bus Data Mask 2

Pin MEM_DQM_1

Ball H19

SDRAM Bus Data Mask 1

Pin MEM_DQM_0

Ball N19

SDRAM Bus Data Mask 0

Pin MEM_MA_12

Ball F19

logic 0 SDRAM Bus Memory Address 12

1 2 ... 108 109 110 111 112 113 114 115 116 117 118 ... 761 762

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