Datasheet

Section 18 Keyboard Buffer Control Unit (PS2)
Rev. 3.00 Sep. 28, 2009 Page 571 of 910
REJ09B0350-0300
Bit Bit Name
Initial
Value R/W Description
3
2
1
0
RXCR3
RXCR2
RXCR1
RXCR0
0
0
0
0
R
R
R
R
Receive Counter
These bits indicate the received data bit. Their value is
incremented on the fall of KCLK. These bits cannot be
modified.
The receive counter is initialized by a reset and when
0 is written in KBE. Its value returns to B'0000 after a
stop bit is received.
0000: —
0001: Start bit
0010: KB0
0011: KB1
0100: KB2
0101: KB3
0110: KB4
0111: KB5
1000: KB6
1001: KB7
1010: Parity bit
1011: —
11- -: —