Reference Information - Samsung SRP-350PG - SRP 350 B/W Direct Thermal Printer Service Manual

6 Reference Information

6-1 Semiconductor Base Diagram
6-1-1 CPU
A19/P4.3
A18/P4.2
A17/P4.1
A16/P4.0
A15/P3.7
A14/P3.6
A13/P3.5
A12/P3.4
A11/P3.3
A10/P3.2
A9/P3.1
VCC
A8/P3.0
VSS
A7/P2.7
A6/P2.6
A5/P2.5
A4/P2.4
A3/P2.3
A2/P2.2
A1/P2.1
A0/P2.0
/INT5/D15/P1.7
/INT4/D14/P1.6
/INT3/D13/P1.5
D12/P1.4
D11/P1.3
D10/P1.2
D9/P1.1
D8/P1.0
Samsung Electro-Mechanics
P7.0/TXD2/SDA/TA0OUT
P7.1/RXD2/SCL/TA0IN/TB5IN
P7.2/CLK2/TA1OUT/V
P7.3/CTS2/RTS2/TA1IN/V
P7.4/TA2OUT/W
P7.5/TA2IN/W
P7.6/TA3OUT
P7.7/TA3IN
P8.0/TA4OUT/U
P8.1/TA4IN/U
P8.2//INT0
P8.3//INT1
P8.4//INT2
P8.5/NMI
VCC
XIN
VSS
XOUT
/RESET
P8.6/XCOUT
P8.7/XCIN
CNVSS
BYTE
P9.0/TB0IN/CLK3
P9.1/TB1IN/SIN3
P9.2/TB2IN/SOUT3
P9.3/DA0/TB3IN
P9.4/DA1/TB4IN
P9.5/ANEX0/CLK4
P9.6/ANEX1/SOUT4
6-1