MC68HC908JB8JDW Freescale Semiconductor, MC68HC908JB8JDW Datasheet - Page 126
MC68HC908JB8JDW
Manufacturer Part Number
MC68HC908JB8JDW
Description
IC MCU 8K FLASH 3MHZ 20-SOIC
Manufacturer
Freescale Semiconductor
Series
HC08r
Datasheet
1.MC908JB8JDWE.pdf
(286 pages)
Specifications of MC68HC908JB8JDW
Core Processor
HC08
Core Size
8-Bit
Speed
3MHz
Connectivity
USB
Peripherals
LVD, POR, PWM
Number Of I /o
13
Program Memory Size
8KB (8K x 8)
Program Memory Type
FLASH
Ram Size
256 x 8
Voltage - Supply (vcc/vdd)
4 V ~ 5.5 V
Oscillator Type
Internal
Operating Temperature
0°C ~ 70°C
Package / Case
20-SOIC (7.5mm Width)
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Eeprom Size
-
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Universal Serial Bus Module (USB)
9.5.1.1 Sync Pattern
Technical Data
126
Each USB transaction is comprised of a series of packets. The USB
module supports the packet types shown in
are generated by the USB host and decoded by the USB device. Data
and handshake packets are both decoded and generated by the USB
device, depending on the type of transaction.
The following sections detail each segment used to form a complete
USB transaction.
The NRZI bit pattern shown in
pattern and is prefixed to each packet. This pattern is equivalent to a
data pattern of seven 0s followed by a 1 ($80).
Token Packet:
Data Packet:
Handshake Packet:
NRZI Data
IN
OUT
SETUP
DATA0
DATA1
ACK
NAK
STALL
Encoding
Universal Serial Bus Module (USB)
Figure 9-4. Supported USB Packet Types
Idle
SYNC
SYNC
SYNC
MC68HC908JB8•MC68HC08JB8•MC68HC08JT8 — Rev. 2.3
Figure 9-5. Sync Pattern
PID
PID
PID
Figure 9-5
PID
PID
PID
SYNC PATTERN
ADDR
EOP
0 – 8 Bytes
is used as a synchronization
Figure
DATA
ENDP
Freescale Semiconductor
9-4. Token packets
CRC16
CRC5
PID0 PID1
EOP
EOP
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