mc68hc908jb8 Freescale Semiconductor, Inc, mc68hc908jb8 Datasheet - Page 117
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mc68hc908jb8
Manufacturer Part Number
mc68hc908jb8
Description
M68hc08 Microcontrollers
Manufacturer
Freescale Semiconductor, Inc
Datasheet
1.MC68HC908JB8.pdf
(286 pages)
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Technical Data — MC68HC908JB8•MC68HC08JB8•MC68HC08JT8
9.1 Contents
MC68HC908JB8•MC68HC08JB8•MC68HC08JT8 — Rev. 2.3
Freescale Semiconductor
Section 9. Universal Serial Bus Module (USB)
9.2
9.3
9.4
9.5
9.5.1
9.5.1.1
9.5.1.2
9.5.1.3
9.5.1.4
9.5.1.5
9.5.1.6
9.5.2
9.5.3
9.5.4
9.5.4.1
9.5.4.2
9.5.4.3
9.5.5
9.6
9.7
9.7.1
9.7.2
9.7.2.1
9.7.2.2
9.7.2.3
9.7.2.4
9.7.2.5
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 118
Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 119
Functional Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .124
Hardware Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 133
Pin Name Conventions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 120
Clock Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 132
Universal Serial Bus Module (USB)
USB Protocol . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 125
Reset Signaling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 129
Suspend . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 130
Resume After Suspend . . . . . . . . . . . . . . . . . . . . . . . . . . . 131
Low-Speed Device . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 132
Voltage Regulator. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 133
USB Transceiver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 133
Sync Pattern . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 126
Packet Identifier Field . . . . . . . . . . . . . . . . . . . . . . . . . . 127
Address Field (ADDR) . . . . . . . . . . . . . . . . . . . . . . . . . . 128
Endpoint Field (ENDP). . . . . . . . . . . . . . . . . . . . . . . . . . 128
Cyclic Redundancy Check (CRC) . . . . . . . . . . . . . . . . . 128
End-of-Packet (EOP) . . . . . . . . . . . . . . . . . . . . . . . . . . .128
Host Initiated Resume . . . . . . . . . . . . . . . . . . . . . . . . . . 131
USB Reset Signalling. . . . . . . . . . . . . . . . . . . . . . . . . . .131
Remote Wakeup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .131
Output Driver Characteristics . . . . . . . . . . . . . . . . . . . . . 134
Low Speed (1.5 Mbps) Driver Characteristics . . . . . . . . 134
Receiver Data Jitter . . . . . . . . . . . . . . . . . . . . . . . . . . . . 135
Data Source Jitter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 135
Data Signal Rise and Fall Time . . . . . . . . . . . . . . . . . . . 136
Technical Data
117