TC94A04AF/AFD

2001-11-15

9

2.1.2 Setting RAM (sequential)

The RAMs are set by command data using the IFDI signal.

The first byte is a command, which differs for each RAM. The next two bytes contain the start address for the RAM written.

The length of the data field following the RAM address bytes is 2 × n bytes. The address is automatically incremented by 1.

During program running, 1 word of data is written at a time in internal RAM synchronizing with a SYNC signal.

Therefore, when performing continuously two or more write to word, unless it applies more than 1/fs [sec] per 1 word and it sets up, taking in of data is not

performed correctly.

At the time of program STOP, it is written in asynchronous.

CS

A11

A10

A13

A12

A15

A14

IFDI

IFCK

A9

A8

C3

C2

C5

C4

C7

C6

C1

C0

A3

A2

A5

A4

A7

A6

A1

A0

D11

D10

D13

D12

D15

D14

D9

D8

D1

D0

Don’t care

Don’t care

Cn: COMMAND

An: ADDRESS

Dn: Data