STA1090 datasheet(36/127 Pages) STMICROELECTRONICS

36 / 127 page

Signal description

STA108x, STA109x

36/127

DS13319 Rev 2

SDRAM_Data_26(1)

GPIO149(1)

I/O

VDD_IO SDR SDRAM. Data line 26.

SDRAM_Data_27(1)

GPIO150(1)

I/O

VDD_IO SDR SDRAM. Data line 27.

SDRAM_Data_28(1)

GPIO151(1)

I/O

VDD_IO SDR SDRAM. Data line 28.

SDRAM_Data_29(1)

GPIO152(1)

I/O

VDD_IO SDR SDRAM. Data line 29

SDRAM_Data_3

GPIO77

I/O

VDD_IO SDR SDRAM. Data line 3.

SDRAM_Data_30(1)

GPIO153(1)

I/O

VDD_IO SDR SDRAM. Data line 30.

SDRAM_Data_31(1)

GPIO154(1)

I/O

VDD_IO SDR SDRAM. Data line 31.

SDRAM_Data_4

GPIO76

I/O

VDD_IO SDR SDRAM. Data line 4.

SDRAM_Data_5

GPIO75

I/O

VDD_IO SDR SDRAM. Data line 5.

SDRAM_Data_6

GPIO74

I/O

VDD_IO SDR SDRAM. Data line 6.

SDRAM_Data_7

GPIO73

I/O

VDD_IO SDR SDRAM. Data line 7.

SDRAM_Data_8

GPIO72

W17

I/O

VDD_IO SDR SDRAM. Data line 8.

SDRAM_Data_9

GPIO71

V17

I/O

VDD_IO SDR SDRAM. Data line 9.

SDRAM_DQM0

GPIO84

VDD_IO SDR SDRAM. Data mask 0, data[7:0].

SDRAM_DQM1

GPIO85

V16

VDD_IO SDR SDRAM. Data mask 1, data[15:8].

SDRAM_DQM2(1)

GPIO145(1)

VDD_IO SDR SDRAM. Data mask 2, data[23:16].

SDRAM_DQM3(1)

GPIO146(1)

VDD_IO SDR SDRAM. Data mask 3, data[31:24].

SDRAM_FBCLK

GPIO88

W16

VDD_IO

SDR SDRAM. Feedback clock line.



Connect it to SDRAM device clock.

SDRAM_RASn

GPIO83

VDD_IO SDR SDRAM. Row address strobe

SDRAM_WEn

GPIO81

VDD_IO SDR SDRAM. Write enable strobe.

SQI_CE0n

VDD_IO SQI. Chip select 0 (active low).

SQI_CE1n

GPIO99

VDD_IO SQI. Chip select 1 (active low).

SQI_FDBSCK

GPIO6

GPIO99

VDD_IO

SQI. Feedback clock.



It must be used for clock frequencies

above 60MHz.

SQI_SCK

VDD_IO SQI. Clock line.

SQI_SIO0

I/O

VDD_IO SQI. Data line 0.

SQI_SIO1

I/O

VDD_IO SQI. Data line 1.

SQI_SIO2

I/O

VDD_IO SQI. Data line 2.

1. Only available on STA109x.

Table 12. Memory signals (continued)

Name

GPIOs

Balls

DIR

Power

Domain

Description

STA1090 Datasheet(PDF) 36 Page - STMicroelectronics

STA1090 Datasheet(HTML) 36 Page - STMicroelectronics

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