pca9633 NXP Semiconductors, pca9633 Datasheet - Page 9

• Manufacturer Part Number: pca9633
• Description: Pca9633 4-bit Fm+ I2c-bus Led Driver
• Manufacturer: NXP Semiconductors

NXP Semiconductors
PCA9633_3
Product data sheet
7.1.3 LED Sub Call I
7.1.4 Software Reset I
7.2 Control register
Remark: The default LED All Call I
as a regular I
PCA9633s on the I
See
Remark: The default LED Sub Call I
slave addresses as long as they are disabled.
The address shown in
performed by the master. The Software Reset address (SWRST Call) must be used with
R/W = 0. If R/W = 1, the PCA9633 does not acknowledge the SWRST. See
“Software Reset”
Remark: The Software Reset I
as a regular I
address.
Following the successful acknowledgement of the slave address, LED All Call address or
LED Sub Call address, the bus master will send a byte to the PCA9633, which will be
stored in the Control register.
The lowest 4 bits are used as a pointer to determine which register will be accessed
(D[3:0]). The highest 3 bits are used as Auto-Increment flag and Auto-Increment options
(AI[2:0]). Bit 4 is unused and must be programmed with zero (0) for proper device
operation.
Fig 9. Software Reset address
•
•
•
•
3 different I
Default power-up values:
– SUBADR1 register: E2h or 1110 001
– SUBADR2 register: E4h or 1110 010
– SUBADR3 register: E8h or 1110 100
Programmable through I
At power-up, Sub Call I
ACK when E2h (R/W = 0) or E3h (R/W = 1), E4h (R/W = 0) or E5h (R/W = 1), or
E8h (R/W = 0) or E9h (R/W = 1) is sent by the master.
Section 7.3.7 “I
2
2
C-bus slave address since this address is enabled at power-up. All the
C-bus slave address (16-pin version) or as an LED All Call or LED Sub Call
2
C-bus addresses can be used
2
for more detail.
C-bus addresses
2
2
2
C-bus will acknowledge the address if sent by the I
C-bus address
C-bus subaddress 1 to 3, SUBADRx”
Rev. 03 — 20 December 2006
Figure 9
2
C-bus addresses are disabled. PCA9633 does not send an
2
C-bus (volatile programming)
0
2
is used when a reset of the PCA9633 needs to be
C-bus address is a reserved address and cannot be used
0
2
C-bus address (E0h or 1110 000) must not be used
2
C-bus addresses may be used as regular I
0
0
0
1
002aab416
1
R/W
0
4-bit Fm+ I
for more detail.
PCA9633
2
2
© NXP B.V. 2006. All rights reserved.
C-bus LED driver
C-bus master.
Section 7.6
2
C-bus
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