Sharp UP-3301 Service Manual page 41

2) Block diagram
A23-A0
IPLONZ
VMEMZ
DROS1Z
RASPN1
RASPN1E
RASPN12Z
RASPN2
RASPN2E
D0-D7
ASZ
RDZ
WRZ
RDOZ
WROZ
PHAI
RESETZ
RESZ
VRESC
POFFZ
VWAITZ
EXWAITZ
WAITZ
MCRINT
MCRINTZ
RDD1
CLS1
RCP1
RDD2
CLS2
RCP2
TPRDY
TPTRDYZ
TPRRDYZ
TPTXD
TPRXD
TPCKI
M P C A 8
SSP COMPARISON
DECODE
BUFFER
READ
WRITE
CONTROL
WAIT
CONTROL
MCR I/F
USART
X2
TOUCH PANEL I/F
USART
UP-3301US CIRCUIT DESCRIPTION
– 39 –
REGISTER SSPRQZ
BAR
TXDI
SCKI
RXDI
HTS1
SCK1
SERIAL
STH2
CHANNEL
SELECT
HTS2
(for CKDC)
SCK2
STH2
INT4Z
INT1Z
INT2Z
INT
INT3Z
CONTROL
EXINT0Z
EXINT1Z
EXINT2Z
EXINT3Z
IRQ02
TESTZ
TEST0
TEST
TEST1
LOGIC
TEST2
MD0
MD1