Panasonic JB-3300 Technical Manual page 441

b. Block diagram
NDC-841
8 BIT
TA-BUS
PARITY-END
DO~7
PARITY-BIT
pBO~r
BUSY
STATUS
MSG
ary
TNEUT
110
INPUT
CID
OUTPUT
CS
SEL
SEL-ADR
110 READ
[10 READ
110 WRITE
DIR
REQ
CHOEXC
TIM-OUT _
ACR
DATA-REOQ
HI-CLOCK
GFCLK
RESET
RESETS
TEST
RESET2
2FCLK
VII - 46