M16C6K9 Datasheet, PDF (214/292 Pages) Renesas Technology Corp – SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER

M16C/6K9 Group
PS2 Interface
(1) Register description
q PS2i shift register
• Transmission/reception data
(1) Data reception
The reception data are stored.
(2) Data transmission
By writing the transmitted data to the register, data transmission is ready to start. PS2 data (DAT) will
become “L” automatically (transmission start).
PS2i Shift register
b7 b6 b5 b4 b3 b2 b1 b0
symbol
PS20SR
PS21SR
PS22SR
Bit symbol
Fig.GK-5 PS2i shift register
Address
02A016
02A416
02A816
Bit name
Reset value
0016
0016
0016
Function
Transmission/reception
data
RW
Rev.1.00 Jun 06, 2003 page 214 of 290