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S3C72B5 Datasheet(PDF) 10 Page - Samsung semiconductor |
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S3C72B5 Datasheet(HTML) 10 Page - Samsung semiconductor |
10 / 37 page PRODUCT OVERVIEW S3C72B5/C72B7/C72B9/P72B9 1-10 PIN DESCRIPTIONS Table 1-1. S3C72B5/C72B7/C72B9 Pin Descriptions Pin Name Pin Type Description Number Share Pin P0.0 P0.1 P0.2 P0.3 I/O 4-bit I/O port. 1-bit and 4-bit read/write and test is possible. 4-bit unit pull-up resisters are assignable to input pins by software and are automatically disabled for output pins. Each bit pin can be allocated as input or output (1-bit unit). The N-ch open drain or push-pull output may be selected by software (1-bit unit). 16 17 18 19 SCK/K0 SO/K1 SI/K2 BUZ/K3 P1.0 P1.1 P1.2 P1.3 I 4-bit input port. 1-bit and 4-bit read and test is possible. 4-bit unit pull-up resistors are assignable to input pins by software. 28 29 30 31 INT0 INT1 INT2 INT4 P2.0 P2.1 P2.2 P2.3 I/O 4-bit I/O port. 1-bit and 4-bit read/write and test is possible. I/O function is same as port 0. 32 33 34 35 M LCDFR CLO1 CLO2 P3.0 P3.1 P3.2 P3.3 I/O 4-bit I/O port. 1-bit and 4-bit read/write and test is possible. I/O function is same as port 0. 36 37 38 39 TCLO0/CL TCLO1 TCL0 TCL1 P4.0 P4.1 P4.2 I/O 3-bit I/O port. I/O function is same as port 0 except that port 4 is 3-bit I/O port. 40 41 42 CIN0 CIN1 CIN2 P6.0 P6.1 P6.2 P6.3 P7.0–P7.3 I/O 4-bit I/O port. 1-, 4-bit and 8-bit read/write and test is possible. 4-bit unit pull-up resisters are assignable to input pins by software and are automatically disabled for output pins. Each bit pin can be allocated as input or output (1-bit unit). The N-ch open drain or push- pull output may be selected by software (4-bit unit). 43 44 45 46 47–50 K4/SEG79 K5/SEG78 K6/SEG77 K7/SEG76 SEG75–72 P8.0–P8.3 P9.0–P9.3 I/O 4-bit I/O port. 1-, 4-bit and 8-bit read/write and test is possible. I/O function is same as port 6, 7. 51–54 55–58 SEG71–68 SEG67–64 P10.0–P10.3 P11.0–P11.3 I/O 4-bit I/O port. 1-, 4-bit and 8-bit read/write and test is possible. I/O function is same as port 6, 7. 59–62 63–66 SEG63–60 SEG59–56 P12.0–P12.3 P13.0–P13.3 I/O 4-bit I/O port. 1-, 4-bit and 8-bit read/write and test is possible. I/O function is same as port 6, 7. 67–70 71–74 SEG55–52 SEG51–48 SCK I/O Serial I/O interface clock signal 16 P0.0 SO I/O Serial data output 17 P0.1 SI I/O Serial data input 18 P0.2 BUZ I/O 2, 4, 8, 16 kHz frequency output for buzzer sound 19 P0.3 K0–K3 K4–K7 I/O External interrupts with rising/falling edge detection 16–19 43–46 P0.0–P0.3 P6.0–P6.3 |
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