Sharp UP-600 Service Manual page 36

2)-2. Block diagram
MPCA9
INT4#~INT0#
MCRINT
WAIT#
FROS1#,EPROM1#
RASPN1,2
DSEX#
RXDH,TXDH,SCKH
OSO1,OSI1
USACK
MD1,MD2
IRQ0#
SSPRQ#
HTS2,SCK2,STH2
RXD4,RXC4,DSR4#
RXD2,RXC2,DSR2#
RXD1,RXC1,DSR1#
IPLON
OPTCS#
VMEMC#,VIOC#
DSF2#
VWAIT#,EXWAIT#
EXINT0#,EXINT1#
EXINT2#,EXINT3#
BUSY3#,RXD3,TXD3
TRXC3,TXRDY3
TRXRDY3,RXRDY3
DTR3#,RTS3#
VRESC
DTCS,DTST#
LCDWT
A23~A0
D7~D0
/AS,/RD,/WR
PHAI,/RESET
USEL2~USEL0, UTST#
MPCA OPC
IRQ1#
TXD5,RXD5
DTR5#,RTS5#
DSR5#,CTS5#
CD5#,CI5#
DBTST
DOT1,DOT2
DOT3,DOT4
DOT5,DOT6
DOT7
DOTEN,RJMTR
PCUT#,FCUT#
TRG#,TRG
PRST#,PTMG#
RJMTD,RJMTS
STAMP#
VF#,RF#,JF#
RJTMG,RJRST
TRGI