STC12LE5616AD datasheet(131/377 Pages) STC

131 / 377 page

T1x12 : Timer 1 clock source bit.

0 : The clock source of Timer 1 is SYSclk/12. It will compatible to the traditional 80C51 MCU

1 : The clock source of Timer 1 is SYSclk/1. It will drive the T0 faster than a traditional 80C51 MCU

T0x12 : Timer 0 clock source bit.

0 : The clock source of Timer 0 is SYSclk/12. It will compatible to the traditional 80C51 MCU

1 : The clock source of Timer 0 is SYSclk/1. It will drive the T0 faster than a traditional 80C51 MCU

2. Interrupt Priority control Registers IP and IPH

Each interrupt source of STC12C5620AD all can be individually programmed to one of four priority levels

by setting or clearing the bits in Special Function Registers IP and IPH. A low-priority interrupt can itself be

interrupted by a high-pority interrupt, but not by another low-priority interrupt. A high-priority interrupt can’t be

interrupted by any other interrupt source.

IPH: Interrupt Priority High Register (Non bit-addressable)

SFR name Address

bit

IPH

B7H

name

PPCA_LVDH PADC_SPIH

PSH

PT1H

PX1H

PT0H

PX0H

IP: Interrupt Priority Register (Bit-addressable)

SFR name Address

bit

B8H

name

PPCA_LVD PADC_SPI

PT1

PX1

PT0

PX0

PPCA_LVDH, PPCA_LVD: Programmable Counter Array (PCA) and Low voltage detector interrupt priority control bits.

if PPCA_LVDH=0 and PPCA_LVD=0, Programmable Counter Array (PCA) and Low voltage detector

interrupt are assigned lowest priority(priority 0).

if PPCA_LVDH=0 and PPCA_LVD=1, Programmable Counter Array (PCA) and Low voltage detector

interrupt are assigned lowest priority(priority 1).

if PPCA_LVDH=1 and PPCA_LVD=0, Programmable Counter Array (PCA) and Low voltage detector

interrupt are assigned lowest priority(priority 2).

if PPCA_LVDH=1 and PPCA_LVD=1, Programmable Counter Array (PCA) and Low voltage .detector

interrupt are assigned lowest priority(priority 3).

PADC_SPIH, PADC_SPI : Serial Peripheral Interface (SPI) and A/D Converter (ADC) interrupt priority control bits.

if PADC_SPIH=0 and PADC_SPI=0, Serial Peripheral Interface (SPI) and A/D Converter (ADC)

interrupt are assigned lowest priority(priority 0).

if PADC_SPIH=0 and PADC_SPI=1, Serial Peripheral Interface (SPI) and A/D Converter (ADC)

interrupt are assigned lowest priority(priority 1).

if PADC_SPIH=1 and PADC_SPI=0, Serial Peripheral Interface (SPI) and A/D Converter (ADC)

interrupt are assigned lowest priority(priority 2).

if PADC_SPIH=1 and PADC_SPI=1, Serial Peripheral Interface (SPI) and A/D Converter (ADC)

interrupt are assigned lowest priority(priority 3).

131

STC12LE5616AD Datasheet(PDF) 131 Page - STCmicro Technology Co,.Ltd

STC12LE5616AD Datasheet(HTML) 131 Page - STCmicro Technology Co,.Ltd

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 ...More

Datasheet Download

Link URL