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LC723663 数据表(PDF) 11 Page - Sanyo Semicon Device |
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LC723663 数据表(HTML) 11 Page - Sanyo Semicon Device |
11 / 12 page LC723661, 723662, 723663 No.0460-11/12 Continued from preceding page. Pin name Pin No. I/O Pin explanation Equivalent circuit PH0/ADI0 PH1/ADI1 PI0/ADI4 PI1/ADI5 PI2/ADI6 PI3/ADI7 67 66 64 63 62 61 I General-purpose input and A/D converter input shared function ports. The IOS1 instruction is used to switch between the general-purpose input and the A/D converter input functions. • When used as general-purpose input ports : The general-purpose input port function is set up with the IOS1 instruction. (In bit units) • When used as A/D converter input pins : The A/D converter input port function is set up with the IOS1 instruction. (In bit units) The pin whose voltage is to be converted is specified with the IOS1 instruction, and the conversion is started with UCC instruction. Note : Since input is disabled for ports specified for the ADI function, executing an input instruction for such a port will always return a low level. Input is disabled in Backup mode. These ports are set up as general-purpose input ports after a power on reset. PJ0 PJ1 60 59 O General-purpose output ports (high-voltage output) Since these are open-drain output circuits, external pull-up resistors are required. The internal transistors are turned off (resulting in a high-level output) in Backup mode and after a power on reset. PK0/INT0 PK1/INT1 58 57 I/O General-purpose I/O and external interrupt shared function ports. The input formats are Schmitt inputs. The external interrupt function is enabled when the external interrupt enable flag is set. • When used as general-purpose I/O ports : The mode (input or output) is set in 1-bit units using the IOS1 instruction. • When used as external interrupt pins : The external interrupt functions are enabled by setting the corresponding external interrupt enable flag (INT0EN through INT3EN). Here, the pins must be set to input mode in advance. Input is disabled and the pins go to the high-impedance state in Backup mode. These ports are set up as general-purpose input ports after a power on reset. PL0 to 3 PM0 to 3 56 to 53 52 to 49 I/O General-purpose I/O ports The mode is switched between input and output with the IOS instruction. Input is disabled and the pins go to the high-impedance state in Backup mode. These ports are set up as general-purpose input ports after a power on reset. PN0/BEEP PN1 PN2 PN3 48 47 46 45 I/O General-purpose I/O port and beep tone output shared function ports. The IOS2 instruction is used to switch between the general-purpose I/O port and the beep tone output functions. • When used as general-purpose I/O ports: The general-purpose I/O port function is set up with the IOS2 instruction. (Pins PN1 through PN3 are dedicated general-purpose output pins.) • When used as the beep tone output pin: The beep tone output function is set up with the IOS2 instruction. The frequency is set up with the BEEP instruction. When this pin is used as the beep tone output pin, executing an output instruction for this pin only sets the internal latch and has no influence on the output. Input is disabled and the pins go to the high-impedance state in Backup mode. These ports are set up as general-purpose input ports after a power on reset. Continued on next page. ILC05543 BACK UP ILC05541 BACK UP To the A/D converter input ILC05542 BACK UP ILC05544 BACK UP |
类似零件编号 - LC723663 |
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类似说明 - LC723663 |
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