XC68HC705JB3 Motorola, XC68HC705JB3 Datasheet - Page 73

• Manufacturer Part Number: XC68HC705JB3
• Description: MICROCONTROLLER
• Manufacturer: Motorola

10.2.1.2 Packet Identifier Field
10.2.1.3 Address Field (ADDR)
MC68HC05JB3
REV 1
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 MC68HC05JB3 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
SOP
PID Value
UNIVERSAL SERIAL BUS MODULE
%1001
%0001
%1101
%0011
%1011
%0010
%1010
%1110
FIRST BIT OF PACKET
November 5, 1998
STALL Handshake
ACK Handshake
NAK Handshake
SETUP Token
DATA0 Packet
DATA1 Packet
OUT Token
PID Type
IN Token
GENERAL RELEASE SPECIFICATION
END OF SYNC
MOTOROLA
10-5