OM6274 NXP Semiconductors, OM6274 Datasheet - Page 8

• Manufacturer Part Number: OM6274
• Description: Interface Modules & Development Tools I2C to SPI Master Bridge Demoboard
• Manufacturer: NXP Semiconductors

Specifications of OM6274

• Interface Type: I2C, SPI
• Data Bus Width: 8 bit
• For Use With/related Products: SC18IS602IPW
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

NXP Semiconductors
SC18IS602_602B_603_4
Product data sheet
7.1.6 Clear Interrupt - Function ID F1h
7.1.7 Idle mode - Function ID F2h
7.1.8 GPIO Write - Function ID F4h
An interrupt is generated by the SC18IS602/602B/603 after any SPI transmission has
been completed. This interrupt can be cleared (INT pin HIGH) by sending a ‘Clear
Interrupt’ command. It is not necessary to clear the interrupt; when polling the device, this
function may be ignored.
A low-power mode may be entered by sending the ‘Idle Mode’ command.
The Idle mode will be exited when its I
The state of the pins defined as GPIO may be changed using the Port Write function.
The data byte following the F4h command will determine the state of SS3, SS2, SS1, and
SS0, if they are configured as GPIO. The Port Enable function will define if these pins are
used as SPI Slave Selects or if they are GPIO.
Table 6.
[1]
Bit
Symbol
Reset
Fig 11. Clear Interrupt
Fig 12. Idle mode
Fig 13. GPIO Write
SS3 does not exist in the SC18IS603.
GPIO Write (F0h) bit allocation
X
X
7
S
SLAVE ADDRESS
Rev. 04 — 11 March 2008
6
X
X
S
S
SLAVE ADDRESS
SLAVE ADDRESS
X
X
5
W
2
C-bus address is detected.
A
W
W
4
X
X
SC18IS602/602B/603
F4h
A
A
SS3
F1h
F2h
A
3
0
[1]
002aac452
002aac453
DATA
A
A
SS2
P
P
2
0
002aac454
I
2
A
C-bus to SPI bridge
P
© NXP B.V. 2008. All rights reserved.
SS1
1
0
SS0
0
0
8 of 25