MC68HC11PH8 Datasheet, PDF (14/264 Pages) Motorola, Inc – High-density Complementary Metal Oxide Semiconductor (HCMOS) Microcomputer Unit

Paragraph
Number
Title
Page
Number
8.2 Pulse-width modulation (PWM) timer ....................................................................8-27
8.2.1 PWM timer block diagram................................................................................8-28
8.2.2 PWCLK — PWM clock prescaler and 16-bit select register ............................8-28
8.2.2.1
16-bit PWM function...................................................................................8-28
8.2.2.2
Clock prescaler selection ...........................................................................8-30
8.2.3 PWPOL — PWM timer polarity & clock source select register ........................8-31
8.2.4 PWSCAL — PWM timer prescaler register .....................................................8-31
8.2.5 PWEN — PWM timer enable register ..............................................................8-32
8.2.6 PWCNT1–4 — PWM timer counter registers 1 to 4 ........................................8-33
8.2.7 PWPER1–4 — PWM timer period registers 1 to 4 ..........................................8-33
8.2.8 PWDTY1–4 — PWM timer duty cycle registers 1 to 4.....................................8-34
8.2.9 Boundary cases ...............................................................................................8-34
8.3 8-bit modulus timers ..............................................................................................8-35
8.3.1 Modulus timer operation ..................................................................................8-35
8.3.2 Clock rate selection..........................................................................................8-37
8.3.2.1
T8ADR — 8-bit modulus timer A data register...........................................8-38
8.3.2.2
T8ACR — 8-bit modulus timer A control register .......................................8-38
8.3.2.3
T8BDR — 8-bit modulus timer B data register...........................................8-39
8.3.2.4
T8BCR — 8-bit modulus timer B control register .......................................8-39
8.3.2.5
T8CDR — 8-bit modulus timer C data register ..........................................8-40
8.3.2.6
T8CCR — 8-bit modulus timer C control register.......................................8-40
9
ANALOG-TO-DIGITAL CONVERTER
9.1
9.1.1
9.1.2
9.1.3
9.1.4
9.1.5
9.1.6
9.1.7
9.2
9.2.1
9.3
9.3.1
9.3.2
9.4
9.4.1
9.4.2
9.5
Overview................................................................................................................9-1
Multiplexer........................................................................................................9-2
Analog converter..............................................................................................9-3
Digital control ...................................................................................................9-3
Result registers................................................................................................9-4
A/D converter clocks ........................................................................................9-4
Conversion sequence ......................................................................................9-4
Conversion process .........................................................................................9-5
A/D converter power-up and clock select ..............................................................9-5
OPTION — System configuration options register 1 .......................................9-5
Channel assignments ............................................................................................9-7
Single-channel operation .................................................................................9-7
Multiple-channel operation...............................................................................9-8
Control, status and results registers ......................................................................9-8
ADCTL — A/D control and status register .......................................................9-8
ADR1–ADR4 — A/D converter results registers..............................................9-10
Operation in STOP and WAIT modes....................................................................9-10
MOTOROLA
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TABLE OF CONTENTS
TPG
MC68HC11PH8