Section 9. universal serial bus module (usb) – Freescale Semiconductor MC68HC08KH12 User Manual

Page 9

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MC68HC(7)08KH12

Rev. 1.1

Advance Information

Freescale Semiconductor

9

8.7

Interrupts. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 107

8.8

Special Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 107

8.8.1

Wait Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 107

8.8.2

CGM During Break Interrupts . . . . . . . . . . . . . . . . . . . . . . 108

8.9

Acquisition/Lock Time Specifications . . . . . . . . . . . . . . . . . . . 108

8.9.1

Acquisition/Lock Time Definitions . . . . . . . . . . . . . . . . . . . 108

8.9.2

Parametric Influences on Reaction Time . . . . . . . . . . . . . 109

8.9.3

Choosing a Filter Capacitor. . . . . . . . . . . . . . . . . . . . . . . . 111

8.9.4

Reaction Time Calculation . . . . . . . . . . . . . . . . . . . . . . . . 111

Section 9. Universal Serial Bus Module (USB)

9.1

Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 113

9.2

Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 114

9.3

Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 115

9.4

I/O Register Description of the HUB function . . . . . . . . . . . . . 116

9.4.1

USB HUB Root Port Control Register (HRPCR) . . . . . . . . 120

9.4.2

USB HUB Downstream Port Control Register

(HDP1CR-HDP4CR) . . . . . . . . . . . . . . . . . . . . . . . . . . 121

9.4.3

USB SIE Timing Interrupt Register (SIETIR). . . . . . . . . . . 123

9.4.4

USB SIE Timing Status Register (SIETSR) . . . . . . . . . . . 125

9.4.5

USB HUB Address Register (HADDR) . . . . . . . . . . . . . . . 127

9.4.6

USB HUB Interrupt Register 0 (HIR0) . . . . . . . . . . . . . . . . 128

9.4.7

USB HUB Control Register 0 (HCR0) . . . . . . . . . . . . . . . . 129

9.4.8

USB HUB Endpoint1 Control & Data Register (HCDR) . . 131

9.4.9

USB HUB Status Register (HSR) . . . . . . . . . . . . . . . . . . . 132

9.4.10

USB HUB Endpoint 0 Data Registers 0-7

(HE0D0-HE0D7). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 134

9.5

I/O Register Description of the Embedded Device Function . 134

9.5.1

USB Embedded Device Address Register (DADDR) . . . . 138

9.5.2

USB Embedded Device Interrupt Register 0 (DIR0) . . . . . 138

9.5.3

USB Embedded Device Interrupt Register 1 (DIR1) . . . . . 140

9.5.4

USB Embedded Device Control Register 0 (DCR0) . . . . . 141

9.5.5

USB Embedded Device Control Register 1 (DCR1) . . . . . 143

9.5.6

USB Embedded Device Status Register (DSR) . . . . . . . . 144

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