MC68HC908JB8 Datasheet, PDF (120/286 Pages) Motorola, Inc – MICROCONTROLLERS

Universal Serial Bus Module (USB)
9.4 Pin Name Conventions
The USB share two I/O pins with two port E I/O pins. The full name of the
USB I/O pin is listed in Table 9-1. The generic pin name appear in the
text that follows.
Table 9-1. USB Module Pin Name Conventions
USB Generic Pin Names:
Full USB Pin Names:
D+
PTE3/D+
D–
PTE4/D–
Addr.
Register Name
Bit 7
6
5
4
3
2
1
Bit 0
$0018
Read:
USB Interrupt Register 2
(UIR2)
Write:
Reset:
0
EOPFR
0
0
RSTFR
0
0
0
0
0
0
0
TXD2FR RXD2FR TXD1FR RESUMFR TXD0FR RXD0FR
0
0
0
0
0
0
$0019
Read:
USB Control Register 2
(UCR2)
Write:
Reset:
T2SEQ
0
STALL2
0
TX2E
0
RX2E TP2SIZ3 TP2SIZ2 TP2SIZ1 TP2SIZ0
0
0
0
0
0
$001A
Read: TX1ST
0
0
USB Control Register 3
(UCR3)
Write:
OSTALL0 ISTALL0
TX1STR
PULLEN ENABLE2 ENABLE1
Reset: 0
0
0
0
0
0*
0
0
* PULLEN bit is reset by POR or LVI reset only.
$001B
Read: 0
0
0
0
0
USB Control Register 4
(UCR4)
Write:
FUSBO FDP
FDM
Reset: 0
0
0
0
0
0
0
0
$0020
USB Endpoint 0 Data ^{Read: UE0R07}
Register 0 Write: UE0T07
(UE0D0) _Reset:
UE0R06
UE0T06
UE0R05
UE0T05
UE0R04 UE0R03
UE0T04 UE0T03
Unaffected by reset
UE0R02
UE0T02
UE0R01
UE0T01
UE0R00
UE0T00
$0021
USB Endpoint 0 Data ^{Read: UE0R17}
Register 1 Write: UE0T17
(UE0D1) _Reset:
UE0R16
UE0T16
UE0R15
UE0T15
UE0R14 UE0R13
UE0T14 UE0T13
Unaffected by reset
UE0R12
UE0T12
UE0R11
UE0T11
UE0R10
UE0T10
= Unimplemented
U = Unaffected by reset
Figure 9-1. USB I/O Register Summary (Sheet 1 of 4)
Technical Data
120
MC68HC908JB8•MC68HC08JB8•MC68HC08JT8 — Rev. 2.3
Universal Serial Bus Module (USB)
Freescale Semiconductor