hd66789 Renesas Electronics Corporation., hd66789 Datasheet - Page 62

• Manufacturer Part Number: hd66789
• Description: 528-channel, One-chip Driver For Amorphous Tft Panels With 262,144-color Display Ram, Power Supply Circuit, And Gate Circuit
• Manufacturer: Renesas Electronics Corporation.

HD66789
Rev.0.12, May 09 2003, page 62 of 156
Second word
Second word
First word
First word
Set the I/D, AM, HSA/HSE, and
VSA/VEA bits
i) Read data to the microcomputer
Dummy read (invalid data)
Read-data latch
Dummy read (invalid data)
Read-data latch
Read (data of address n)
Read (data of address n)
GRAM Read-data latch
GRAM Read-data latch
Address: M set
Address: N set
DB17-0
DB17-0
GRAM read sequence
Second word
Second word
First word
First word
ii) Logical arithmetic operacion inside HD66789
Set the I/D, AM, HSA/HSE, and
VSA/VEA bits
Automatic address update: N +α
Dummy read (invalid data)
Dummy read (invalid data)
GRAM Read-data latch
Write (data of address n)
GRAM Read-data latch
Write(data of address n)
DB17-0
DB17-0 GRAM
Address: N set
GRAM
Preliminary