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LC72P366 Scheda tecnica(PDF) 9 Page - Sanyo Semicon Device |
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LC72P366 Scheda tecnica(HTML) 9 Page - Sanyo Semicon Device |
9 / 14 page No. 5544-9/14 LC72P366 Continued from preceding page. Pin No. Symbol I/O I/O type Function 67 66 65 64 63 62 61 60 59 58 57 56 55 54 53 52 to 45 HOLD PH0/ADI0 PH1/ADI1 PH2/ADI2 PH3/ADI3 PI0/ADI4 PI1/ADI5 PJ0 PJ1 PJ2 PJ3 PK0/INT0 PK1/INT1 PK2 PK3 PL0 to PL3 PM0 to PM3 I I O I/O I/O Input Input N-channel open drain CMOS push-pull CMOS push-pull PLL control and clock stop mode control Setting this pin low in the hold enabled state disables input to the FMIN and AMIN pins and sets the EO pin to the high-impedance state. To enter clock stop mode, set the HOLDEN flag, set this pin low, and execute a CKSTP instruction. To clear clock stop mode, set this pin high. General-purpose input port/A/D converter shared-function pins The IOS instruction with PWn = 7 or 8 switches the pin function between general-purpose input ports and A/D converter inputs. • General-purpose input port usage Specify general-purpose input port usage with the IOS instruction with PWn = 7 or 8 in bit units. • A/D converter usage Specify A/D converter usage with the IOS instruction with PWn = 7 or 8 in bit units. Specify the pin to convert with the IOS instruction with PWn = 1. Start a conversion with the UCC instruction (b2). The ADCE flag will be set when the conversion competes. Note: Executing an input instruction for a port specified for ADI usage will always return low since input is disabled. These pins must be set up for general-purpose input port usage before an input instruction is executed. Input is disabled in clock stop mode. During the power-on reset, these pins go to the general-purpose input port function. General-purpose output ports An external pull-up resistor is required since these pins are open-drain circuits. In clock stop mode, these pins go to the transistor off state (high level output). During the power-on reset, these pins are set up as general-purpose output ports and go to the transistor off state (high level output). General-purpose I/O/external interrupt shared-function ports There is no instruction that switches the function of these ports between general-purpose ports and external interrupt ports. These pins function as external interrupt pins at the point where the external interrupt enable flag is set. • General-purpose I/O port usage These pins can be set for input or output in bit units (bit I/O). The IOS instruction is used to specify input or output in bit units. • External interrupt pin usage This function can be used by setting the external interrupt enable flags (INT0EN and INT1EN) in status register 2. The corresponding pin must be set up for input. To enable interrupt operation, the interrupt enable flag (INTEN) in status register 1 also must be set. The IOS instruction with PWn = 3, b1 = INT1, and b0 = INT0 is used to select rising or falling edge detection. In clock stop mode, input is disabled and these pins go to the high impedance state. During the power-on reset, these pins function as general-purpose input ports. General-purpose I/O ports The IOS instruction is used to specify input or output. In clock stop mode input is disabled and these pins go to the high impedance state. During the power-on reset, these pins function as general-purpose input ports. Continued on next page. |
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