Philips Semiconductors
PDIUSBD12
USB interface device with parallel bus
Set mode command, Configuration byte: bit allocation
Symbol
Description
ENDPOINT
These two bits set the endpoint configurations as follows:
CONFIGURAT mode 0 (Non-ISO mode)
ION
mode 1 (ISO-OUT mode)
mode 2 (ISO-IN mode)
mode 3 (ISO-I/O mode)
See
Section 8 “Endpoint description”
for more details.
Table 5:
Bit
7 to 6
4
SoftConnect
A ‘1’ indicates that the upstream pull-up resistor will be connected
if V
BUS
be connected. The programmed value will not be changed by a
bus reset.
A ‘1’ indicates that all errors and “NAKing” are reported and will
generate an interrupt. A ‘0’ indicates that only OK is reported. The
programmed value will not be changed by a bus reset.
A ‘1’ indicates that the internal clocks and PLL are always running
even during Suspend state. A ‘0’ indicates that the internal clock,
crystal oscillator and PLL are stopped whenever not needed. To
meet the strict Suspend current requirement, this bit needs to be
set to ‘0’. The programmed value will not be changed by a bus
reset.
A ‘1’ indicates that CLKOUT will not switch to LazyClock. A ‘0’
indicates that the CLKOUT switches to LazyClock 1ms after the
Suspend pin goes HIGH. LazyClock frequency is 30 kHz
±
40%.
The programmed value will not be changed by a bus reset.
3
INTERRUPT
MODE
CLOCK
RUNNING
2
1
NO
LAZYCLOCK
7 6
0 0
5
X
4
X
3
1
2
0
1
1
0
1
POWER ON VALUE
CLOCK DIVISION FACTOR
RESERVED
SET_TO_ONE
SOF-ONLY INTERRUPT MODE
SV00862
See
Table 6
for bit allocation.
Fig 7. Set mode command, Clock division factor byte.
9397 750 09238
© Koninklijke Philips Electronics N.V. 2001. All rights reserved.
Product data
Rev. 08 — 20 December 2001
13 of 35
PHILIPS [ NXP SEMICONDUCTORS ]
