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PIC18LF4520E/SPQTP 数据表(PDF) 111 Page - Microchip Technology |
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PIC18LF4520E/SPQTP 数据表(HTML) 111 Page - Microchip Technology |
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111 / 390 page  2004 Microchip Technology Inc. Preliminary DS39631A-page 109 PIC18F2420/2520/4420/4520 TABLE 10-3: PORTB I/O SUMMARY Pin Function TRIS Setting I/O I/O Type Description RB0/INT0/FLT0/ AN12 RB0 0 O DIG LATB<0> data output; not affected by analog input. 1 I TTL PORTB<0> data input; weak pull-up when RBPU bit is cleared. Disabled when analog input enabled.(1) INT0 1 I ST External interrupt 0 input. FLT0 1 I ST Enhanced PWM Fault input (ECCP1 module); enabled in software. AN12 1 I ANA A/D input channel 12.(1) RB1/INT1/AN10 RB1 0 O DIG LATB<1> data output; not affected by analog input. 1 I TTL PORTB<1> data input; weak pull-up when RBPU bit is cleared. Disabled when analog input enabled.(1) INT1 1 I ST External Interrupt 1 input. AN10 1 I ANA A/D input channel 10.(1) RB2/INT2/AN8 RB2 0 O DIG LATB<2> data output; not affected by analog input. 1 I TTL PORTB<2> data input; weak pull-up when RBPU bit is cleared. Disabled when analog input enabled.(1) INT2 1 I ST External interrupt 2 input. AN8 1 I ANA A/D input channel 8.(1) RB3/AN9/CCP2 RB3 0 O DIG LATB<3> data output; not affected by analog input. 1 I TTL PORTB<3> data input; weak pull-up when RBPU bit is cleared. Disabled when analog input enabled.(1) AN9 1 I ANA A/D input channel 9.(1) CCP2(2) 0 O DIG CCP2 compare and PWM output. 1 I ST CCP2 capture input RB4/KBI0/AN11 RB4 0 O DIG LATB<4> data output; not affected by analog input. 1 I TTL PORTB<4> data input; weak pull-up when RBPU bit is cleared. Disabled when analog input enabled.(1) KBI0 1 I TTL Interrupt on pin change. AN11 1 I ANA A/D input channel 11.(1) RB5/KBI1/PGM RB5 0 O DIG LATB<5> data output. 1 I TTL PORTB<5> data input; weak pull-up when RBPU bit is cleared. KBI1 1 I TTL Interrupt on pin change. PGM x I ST Single-Supply Programming mode entry (ICSP™). Enabled by LVP configuration bit; all other pin functions disabled. RB6/KBI2/PGC RB6 0 O DIG LATB<6> data output. 1 I TTL PORTB<6> data input; weak pull-up when RBPU bit is cleared. KBI2 1 I TTL Interrupt on pin change. PGC x I ST Serial execution (ICSP) clock input for ICSP and ICD operation.(3) RB7/KBI3/PGD RB7 0 O DIG LATB<7> data output. 1 I TTL PORTB<7> data input; weak pull-up when RBPU bit is cleared. KBI3 1 I TTL Interrupt on pin change. PGD x O DIG Serial execution data output for ICSP and ICD operation.(3) x I ST Serial execution data input for ICSP and ICD operation.(3) Legend: DIG = Digital level output; TTL = TTL input buffer; ST = Schmitt Trigger input buffer; ANA = Analog level input/output; x = Don’t care (TRIS bit does not affect port direction or is overridden for this option). Note 1: Configuration on POR is determined by the PBADEN configuration bit. Pins are configured as analog inputs by default when PBADEN is set and digital inputs when PBADEN is cleared. 2: Alternate assignment for CCP2 when the CCP2MX configuration bit is ‘0’. Default assignment is RC1. 3: All other pin functions are disabled when ICSP or ICD are enabled. |
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