Benchmark ADC16 Datenblatt Seite 68
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16-BIT TIMER (Cont’d)
CONTROL REGISTER 2 (CR2)
Read/Write
Reset Value: 0000 0000 (00h)
Bit 7 = OC1E
Output Compare 1 Pin Enable.
This bit is used only to output the signal from the
timer on the OCMP1 pin (OLV1 in Output Com-
pare mode, both OLV1 and OLV2 in PWM and
one-pulse mode). Whatever the value of the OC1E
bit, the internal Output Compare 1 function of the
timer remains active.
0: OCMP1 pin alternate function disabled (I/O pin
free for general-purpose I/O).
1: OCMP1 pin alternate function enabled.
Bit 6 = OC2E
Output Compare 2 Pin Enable.
This bit is used only to output the signal from the
timer on the OCMP2 pin (OLV2 in Output Com-
pare mode). Whatever the value of the OC2E bit,
the internal Output Compare 2 function of the timer
remains active.
0: OCMP2 pin alternate function disabled (I/O pin
free for general-purpose I/O).
1: OCMP2 pin alternate function enabled.
Bit 5 = OPM
One Pulse mode.
0: One Pulse mode is not active.
1: One Pulse mode is active, the ICAP1 pin can be
used to trigger one pulse on the OCMP1 pin; the
active transition is given by the IEDG1 bit. The
length of the generated pulse depends on the
contents of the OC1R register.
Bit 4 = PWM
Pulse Width Modulation.
0: PWM mode is not active.
1: PWM mode is active, the OCMP1 pin outputs a
programmable cyclic signal; the length of the
pulse depends on the value of OC1R register;
the period depends on the value of OC2R regis-
ter.
Bits 3:2 = CC[1:0]
Clock Control.
The timer clock mode depends on these bits:
Table 14. Clock Control Bits
Note: If the external clock pin is not available, pro-
gramming the external clock configuration stops
the counter.
Bit 1 = IEDG2
Input Edge 2.
This bit determines which type of level transition
on the ICAP2 pin will trigger the capture.
0: A falling edge triggers the capture.
1: A rising edge triggers the capture.
Bit 0 = EXEDG
External Clock Edge.
This bit determines which type of level transition
on the external clock pin (EXTCLK) will trigger the
counter register.
0: A falling edge triggers the counter register.
1: A rising edge triggers the counter register.
70
OC1E OC2E OPM PWM CC1 CC0 IEDG2 EXEDG
Timer Clock CC1 CC0
f
CPU
/ 4 0 0
f
CPU
/ 2 0 1
f
CPU
/ 8 1 0
External Clock (where
available)
11
- ST72334J/N 1
- ST72314J/N, ST72124J 1
- Table of Contents 2
- 2 INTRODUCTION 6
- 3 PIN DESCRIPTION 7
- (N versions) 8
- (J versions) 9
- 4 REGISTER & MEMORY MAP 13
- 5 FLASH PROGRAM MEMORY 17
- 6 DATA EEPROM 18
- Interrupt enable 21
- Latch Access Transfer 21
- 8 CENTRAL PROCESSING UNIT 23
- Half carry 24
- Interrupt mask 24
- Negative 24
- Carry/borrow 24
- 00000001 25
- MAIN CLOCK 26
- CONTROLLER 26
- ■ an external source 30
- ■ an external RC oscillator 30
- LVD reset flag 32
- Clock security syst 32
- interrupt enable 32
- Watchdog reset flag 32
- 10 INTERRUPTS 33
- INTERRUPTS (Cont’d) 34
- Table 5. Interrupt mapping 34
- 11 POWER SAVING MODES 35
- 12 I/O PORTS 39
- Hardware Configuration 41
- OPEN-DRAIN OUTPUT 41
- PUSH-PULL OUTPUT 41
- Data register 8 bits 44
- Option register 8 bits 44
- I/O PORTS (Cont’d) 45
- 13 MISCELLANEOUS REGISTERS 46
- Main clock out selection 47
- CPU clock prescaler 47
- Slow mode select 47
- Must always be cleared 48
- Beep control 48
- SS mode selection 48
- SS internal mode 48
- 14 ON-CHIP PERIPHERALS 49
- Activation bit 50
- 7-bit timer (MSB to LSB) 50
- Watchdog flag 50
- WATCHDOG TIMER (Cont’d) 51
- Time base control 53
- Oscillator interrupt enable 53
- Oscillator interrupt flag 53
- clock speed) with the choice 54
- 16-BIT TIMER (Cont’d) 55
- Beginning of the sequence 56
- Sequence completed 56
- /CC[1:0]) 58
- 16-BIT FREE RUNNING 59
- OLVL2OLVL1 64
- Pulse Width Modulation cycle 65
- Input Capture Flag 1 69
- Output Compare Flag 1 69
- Timer Overflow Flag 69
- Input Capture Flag 2 69
- Output Compare Flag 2 69
- CAPTURE STROBE 77
- VR02131B 77
- Write Collision status 83
- Mode Fault flag 83
- TDRE TC RDRF IDLE OR NF FE 93
- R8 T8 - M WAKE - 94
- TIE TCIE RIE ILIE TE RE RWU 94
- First SCI Prescaler 95
- SCI Transmitter rate divisor 95
- SCI Receiver rate divisor 95
- 8-bit Extended Receive Pres 96
- 8-bit Extended Transmit Pres 96
- CH2 CH1CH3COCO 0 ADON 0 CH0 97
- ■ A/D conversion [duration: t 98
- D7 D6 D5 D4 D3 D2 D1 D0 99
- COCO 0 ADON 0 CH3 CH2 CH1 CH0 99
- 15 INSTRUCTION SET 101
- Relative (Indirect) 103
- INSTRUCTION GROUPS (Cont’d) 105
- 16 ELECTRICAL CHARACTERISTICS 107
- 16.6 MEMORY CHARACTERISTICS 122
- 16.6.2 EEPROM Data Memory 122
- 16.6.3 FLASH Program Memory 122
- R=10k~10MΩ 124
- UNUSED I/O PORT 128
- ADC Accuracy 139
- 17 PACKAGE CHARACTERISTICS 140
- ■ Heraeus: PD945, PD955 143
- ■ Loctite: 3615, 3298 143
- MICROCONTROLLER OPTION LIST 146
- DEVELOPMENT TOOLS (Cont’d) 148
- 18.4 ST7 APPLICATION NOTES 149
- 19 IMPORTANT NOTES 151
- 20 SUMMARY OF CHANGES 152
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