pca9635 NXP Semiconductors, pca9635 Datasheet - Page 7

• Manufacturer Part Number: pca9635
• Description: Pca9635 16-bit Fm I2c-bus Led Driver
• Manufacturer: NXP Semiconductors

NXP Semiconductors
PCA9635_5
Product data sheet
7.1.2 LED All Call I
7.1.3 LED Sub Call I
7.1.4 Software Reset I
The last bit of the address byte defines the operation to be performed. When set to logic 1
a read is selected, while a logic 0 selects a write operation.
See
Remark: The default LED All Call I
as a regular I
PCA9635s 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 = logic 0. If R/W = logic 1, the PCA9635 does not acknowledge the SWRST. See
Section 7.6 “Software Reset”
Remark: The Software Reset I
as a regular I
Fig 4. Software Reset address
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•
•
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Default power-up value (ALLCALLADR register): E0h or 1110 000
Programmable through I
At power-up, LED All Call I
E0h (R/W = 0) or E1h (R/W = 1) is sent by the master.
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 7.3.8 “ALLCALLADR, LED All Call I
Section 7.3.7 “SUBADR1 to SUBADR3, I
2
2
C-bus slave address since this address is enabled at power-up. All the
C-bus slave address or as an LED All Call or LED Sub Call address.
2
2
C-bus addresses can be used
C-bus address
2
C-bus addresses
2
2
C-bus will acknowledge the address if sent by the I
C-bus address
Figure 4
Rev. 05 — 22 March 2007
2
C-bus addresses are disabled. PCA9635 does not send an
2
2
C-bus (volatile programming)
C-bus (volatile programming)
for more detail.
2
0
2
C-bus address is enabled. PCA9635 sends an ACK when
is used when a reset of the PCA9635 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
2
0
C-bus subaddress 1 to 3”
2
C-bus address”
1
002aab416
1
R/W
16-bit Fm+ I
0
for more detail.
PCA9635
2
2
© NXP B.V. 2007. All rights reserved.
C-bus LED driver
C-bus master.
for more detail.
2
C-bus
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