STA016 datasheet(38/43 Pages) STMICROELECTRONICS

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STA016A

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7.3 TTL Schmitt Trigger Inpud Pad Buffer, 3V capable / Pin numbers:17, 60, 63

7.4 TTL Inpud Pad Buffer, 3V capable with Pull-Up / Pin numbers:15, 16

7.5 TTL Schmitt Trigger Bidir Pad Buffer, with Pull-up, 4mA, with slew rate control / 3V capable

Pin numbers: 26, 27, 28, 31, 32, 33, 34, 35, 44, 45, 46, 47, 48, 49, 50, 51, 64

7.6 TTL Input Pad Buffer, 3V capable, with pull down / Pin numbers: 12, 13, 14, 55

COMMAND PROTOCOL CONFIGURATION

General Information About The Command Protocol

I2C protocol :

CD_module & mmdsp are using an I2C protocol to communicate : CD_module is master of the I2C protocol,

and can access (in read and write mode) host registers of the STA016A to write commands to the mmdsp and

to read request from the mmdsp. It must use following I2C syntax :

device_address, host_register_number, host_register_value

where :

for a write acces, device_address is 0x86.

for a read acces, device_address is 0x87.

Writing a command to mmdsp :

CD_module write its command inside dedicated host registers (mainly H64 to H69), then it must signals the writ-

ing of this command to mmdsp by sending the interrupt IT_CMD to the core of mmdsp.

Note that IT_CMD is generated by cd_module threw a falling edge on the input line number 0 of the STA016A

INPUT PIN

CAPACITANCE

ATBD

INPUT PIN

CAPACITANCE

ATBD

INPUT PIN

CAPACITANCE

OUTPUT

MAX

LOAD

TBD

100pF

INPUT PIN

CAPACITANCE

ATBD

D98AU906

D98AU907

D00AU1150

D00AU1222

STA016 Folha de dados(PDF) 38 Page - STMicroelectronics