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PIC16LC620-04/SS 数据表(PDF) 52 Page - Microchip Technology |
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PIC16LC620-04/SS 数据表(HTML) 52 Page - Microchip Technology |
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52 / 108 page  PIC16C62X DS30235G-page 52 Preliminary © 1998 Microchip Technology Inc. TABLE 9-6: INITIALIZATION CONDITION FOR SPECIAL REGISTERS TABLE 9-7: INITIALIZATION CONDITION FOR REGISTERS Condition Program Counter STATUS Register PCON Register Power-on Reset 000h 0001 1xxx ---- --0x MCLR reset during normal operation 000h 000u uuuu ---- --uu MCLR reset during SLEEP 000h 0001 0uuu ---- --uu WDT reset 000h 0000 uuuu ---- --uu WDT Wake-up PC + 1 uuu0 0uuu ---- --uu Brown-out Reset 000h 000x xuuu ---- --u0 Interrupt Wake-up from SLEEP PC + 1(1) uuu1 0uuu ---- --uu Legend: u = unchanged, x = unknown, - = unimplemented bit, reads as ‘0’. Note 1: When the wake-up is due to an interrupt and global enable bit, GIE is set, the PC is loaded with the interrupt vector (0004h) after execution of PC+1. Register Address Power-on Reset • MCLR Reset during normal operation • MCLR Reset during SLEEP • WDT Reset • Brown-out Reset (1) • Wake up from SLEEP through interrupt • Wake up from SLEEP through WDT time-out W - xxxx xxxx uuuu uuuu uuuu uuuu INDF 00h - - - TMR0 01h xxxx xxxx uuuu uuuu uuuu uuuu PCL 02h 0000 0000 0000 0000 PC + 1 (3) STATUS 03h 0001 1xxx 000q quuu (4) uuuq quuu (4) FSR 04h xxxx xxxx uuuu uuuu uuuu uuuu PORTA 05h ---x xxxx ---u uuuu ---u uuuu PORTB 06h xxxx xxxx uuuu uuuu uuuu uuuu CMCON 1Fh 00-- 0000 00-- 0000 uu-- uuuu PCLATH 0Ah ---0 0000 ---0 0000 ---u uuuu INTCON 0Bh 0000 000x 0000 000u uuuu uqqq (2) PIR1 0Ch -0-- ---- -0-- ---- -q-- ---- (2,5) OPTION 81h 1111 1111 1111 1111 uuuu uuuu TRISA 85h ---1 1111 ---1 1111 ---u uuuu TRISB 86h 1111 1111 1111 1111 uuuu uuuu PIE1 8Ch -0-- ---- -0-- ---- -u-- ---- PCON 8Eh ---- --0x ---- --uq (1,6) ---- --uu VRCON 9Fh 000- 0000 000- 0000 uuu- uuuu Legend: u = unchanged, x = unknown, - = unimplemented bit, reads as ‘0’,q = value depends on condition. Note 1: If VDD goes too low, Power-on Reset will be activated and registers will be affected differently. 2: One or more bits in INTCON, PIR1 and/or PIR2 will be affected (to cause wake-up). 3: When the wake-up is due to an interrupt and the GIE bit is set, the PC is loaded with the interrupt vector (0004h). 4: See Table 9-6 for reset value for specific condition. 5: If wake-up was due to comparator input changing, then bit 6 = 1. All other interrupts generating a wake-up will cause bit 6 = u. 6: If reset was due to brown-out, then bit 0 = 0. All other resets will cause bit 0 = u. |
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