mc68hc05jb4p Freescale Semiconductor, Inc, mc68hc05jb4p Datasheet - Page 71

• Manufacturer Part Number: mc68hc05jb4p
• Description: Mc68hc705jb4 Microcontroller
• Manufacturer: Freescale Semiconductor, Inc

10.2.1.2 Packet Identifier Field
10.2.1.3 Address Field (ADDR)
MC68HC05JB4
REV 2
The Packet Identifier field is an eight bit number comprised of the four bit packet
identification (PID) and its complement. The field follows the sync pattern and
determines the direction and type of transaction on the bus. Table 10-1 shows the
PID values for the supported packet types.
The Address field is a seven bit number that is used to select a particular USB
device. This field is compared to the lower seven bits of the UADDR register to
determine if a given transaction is targeting the MC68HC05JB4 USB device.
V
V
V
V
SE
OH
SE
OL
(max)
(min)
(min)
(min)
V
SS
Figure 10-5. SOP, Sync Signaling and Voltage Levels
BUS IDLE
Table 10-1. Supported Packet Identifiers
Freescale Semiconductor, Inc.
For More Information On This Product,
SOP
PID Value
UNIVERSAL SERIAL BUS MODULE
%1001
%0001
%1101
%0011
%1011
%0010
%1010
%1110
Go to: www.freescale.com
FIRST BIT OF PACKET
February 24, 1999
STALL Handshake
ACK Handshake
NAK Handshake
SETUP Token
DATA0 Packet
DATA1 Packet
OUT Token
PID Type
IN Token
GENERAL RELEASE SPECIFICATION
END OF SYNC