7 I/O PORT
S5U1C17801T1100 HARDWARE MANUAL EPSON 21
(SOFTWARE EVALUATION TOOL FOR S1C17801)
Port Direction Multiplex Signal Name Connected to
P62 I/O Memory P62/A2Expansion I/F (Connector No.: J18) &
SRAM & NOR Flash
P63 I/O Memory P63/A3
P64 I/O Memory P64/A4
P65 I/O Memory P65/A5
P66 I/O Memory P66/A6
P67 I/O Memory P67/A7
P70 I/O Memory P70/A8
P71 I/O Memory P71/A9
P72 I/O Memory P72/A10
P73 I/O Memory P73/A11
P74 I/O Memory P74/A12
P75 I/O Memory P75/A13
P76 I/O Memory P76/A14
P77 I/O Memory P77/A15
P80 I/O Memory P80/A16
P81 I/O Memory P81/A17
P82 I/O Memory P82/A18
P83 I/O Memory P83/A19
P84 I/O Memory P84/A20
P85 I/O Memory P85/A21 Expansion I/F (Connector No.: J18) &
NOR Flash
P86 I/O Memory P86/A22/CMU_CLK
P90 I/O Memory P90/D0Expansion I/F (Connector No.: J18) &
SRAM & NOR Flash & NAND Flash
P91 I/O Memory P91/D1
P92 I/O Memory P92/D2
P93 I/O Memory P93/D3
P94 I/O Memory P94/D4
P95 I/O Memory P95/D5
P96 I/O Memory P96/D6
P97 I/O Memory P97/D7
PA0I/O Memory PA0/#CE0NOR Flash
PA1I/O Memory PA1/#CE1SRAM
PA2I/O Memory PA2/#CE2NAND Flash
PA3I/O Memory PA3/#CE3NAND Flash
PA4I/O Memory PA4/#RD NOR Flash & SRAM
PA5I/O Memory PA5/#WRL NOR Flash & SRAM
PA6I/O Memory PA6/#WRH/#BSH SRAM
PB0I/O Memory PB0/D8Expansion I/F (Connector No.: J18) &
SRAM & NOR Flash
PB1I/O Memory PB1/D9
PB2I/O Memory PB2/D10
PB3I/O Memory PB3/D11
PB4I/O Memory PB4/D12
PB5I/O Memory PB5/D13
PB6I/O Memory PB6/D14
PB7I/O Memory PB7/D15
PC0I/O LCD PC0/FPDAT0/CMU_CLK Rotary encoder
PC1I/O LCD PC1/FPDAT1/#WDT_NMI
PC2I/O LCD PC2/FPDAT2/#ADTRG Switch IC → NAND Flash or reset
PC3I/O LCD PC3/FPDAT3/PWMPRT0Switch IC → NAND Flash or
expansion I/F (Connector No.: J8)
PC4I/O LCD PC4/FPDAT4Expansion I/F (Connector No.: J12)
PC5I/O LCD PC5/FPDAT5
PC6I/O LCD PC6/FPDAT6
PC7I/O LCD PC7/FPDAT7