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TMP93CS41 Datasheet(PDF) 55 Page - Toshiba Semiconductor |
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TMP93CS41 Datasheet(HTML) 55 Page - Toshiba Semiconductor |
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55 / 248 page ![]() TMP93CS40/TMP93CS41 2004-02-10 93CS40-53 3.5 Functions of Ports The TMP93CS40 has 79 bits for I/O ports. The TMP93CS41 has 61 bits for I/O ports because port 0, port 1, P30, and P31 are dedicated pins for AD0 to AD7, AD8 to AD15 or A8 to A15, RD , and WR . These port pins have I/O functions for the built-in CPU and internal I/Os as well as general-purpose I/O port functions. Table 3.5.1 lists the function of each port pin. Table 3.5.2 lists I/O registers and their specifications. Table 3.5.1 Functions of Ports Port No. Pin No. Number of Pins Direction R Direction Setting Unit Pin Name for Built-in Function Port 0 P00 to P07 8 I/O − Bit AD0 to AD7 Port 1 P10 to P17 8 I/O − Bit AD8 to AD15/A8 to A15 Port 2 P20 to P27 8 I/O ↓ Bit A0 to A7/A16 to A23 Port 3 P30 P31 P32 P33 P34 P35 P36 P37 1 1 1 1 1 1 1 1 Output Output I/O I/O I/O I/O I/O I/O − − ↑ ↑ ↑ ↑ ↑ ↑ (Fixed) (Fixed) Bit Bit Bit Bit Bit Bit RD WR HWR WAIT BUSRQ BUSAK W R/ RAS ↑ ↑ Port 4 P40 P41 P42 1 1 1 I/O I/O I/O ↓ Bit Bit Bit CS0 / 0 CAS CS1 / 1 CAS CS2 / 2 CAS Port 5 P50 to P57 8 Input − (Fixed) AN0 to AN7 Port 6 P60 to P67 8 I/O ↑ Bit PG00 to PG03, PG10 to PG13 Port 7 P70 P71 P72 P73 1 1 1 1 I/O I/O I/O I/O ↑ ↑ ↑ ↑ Bit Bit Bit Bit TI0 TO1 TO2 TO3 Port 8 P80 P81 P82 P83 P84 P85 P86 P87 1 1 1 1 1 1 1 1 I/O I/O I/O I/O I/O I/O I/O I/O ↑ ↑ ↑ ↑ ↑ ↑ ↑ ↑ Bit Bit Bit Bit Bit Bit Bit Bit TI4/INT4 TI5/INT5 TO4 TO5 TI6/INT6 TI7/INT7 TO6 INT0 Port 9 P90 P91 P92 P93 P94 P95 P96 P97 1 1 1 1 1 1 1 1 I/O I/O I/O I/O I/O I/O I/O I/O ↑ ↑ ↑ ↑ ↑ ↑ − − Bit Bit Bit Bit Bit Bit Bit Bit TXD0 RXD0 CTS0 /SCLK0 TXD1 RXD1 SCLK1 XT1 XT2 Port A PA0 to PA6 PA7 7 1 I/O I/O − − Bit Bit SCOUT R: ↑ = With programmable pull-up resistor ↓ = With programmable pull-down resistor. |
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