MAX6960 MAXIM [Maxim Integrated Products], MAX6960 Datasheet - Page 16

• Manufacturer Part Number: MAX6960
• Description: 4-Wire Serially Interfaced 8 x 8 Matrix Graphic LED Drivers
• Manufacturer: MAXIM [Maxim Integrated Products]

4-Wire Serially Interfaced
8 x 8 Matrix Graphic LED Drivers
Table 9. Register Address Local/Global Control Bit Format
Table 10. Register Address Autoincrement Control Bit Format
Table 11. Driver Address Register Format
basis (updates all MAX6960s), according to the status
of the local/global bit (Table 9). The local/global bit is
ignored during a 16-bit read transmission, and the
MAX6960 pointed to by the global driver indirect
address register is read.
When a read or write is indirected through the global dri-
ver indirect address register, the 16-bit command can
choose whether the global driver indirect address is
autoincremented after the command has been executed.
This allows the host to set up one or more registers in
consecutive MAX6960s with the display indirect address,
autoincrementing only when required (Table 10).
16
LOCAL: Only the MAX6960 indirected by driver
indirect address is written.
GLOBAL: All MAX6960s are written with the same
data.
LOCAL: The MAX6960 indirected by driver indirect
address responds.
GLOBAL: The MAX6960 configured to address 0x00
responds.
GLOBAL: All MAX6960s are written with the same
data.
GLOBAL: The MAX6960 configured to address 0x00
responds.
Driver indirect address is not changed
Driver indirect address is incremented after read/write
Driver indirect address is not changed
______________________________________________________________________________________
Register Address Autoincrementing
Driver address
REGISTER
REGISTER
REGISTER
ADDRESS
ADDRESS
ADDRESS
0x00 to
0x08 to
0x00 to
0x08 to
CODE
(HEX)
CODE
CODE
(HEX)
(HEX)
0x07
0x0F
0x07
0x00
Reading the driver address register (Table 11) returns
the driver address that has been assigned to a particu-
lar MAX6960. The order of the driver addresses is
determined purely by the order that the 3-wire interface
is daisy-chained through multiple MAX6960s. The reg-
ister is used to detect the presence of a MAX6960 at an
address, and a binary search on the 256 possible
addresses can be used to determine the size of an
array of MAX6960s.
MSB
D15
D15
D7
0
0
1
1
0
1
X
X
X
D14
D14
D6
X
X
X
X
X
X
0
1
X
8-bit driver address 0x00 to 0xFF
D13
D13
D5
X
X
0
1
0
1
X
X
X
COMMAND ADDRESS
COMMAND ADDRESS
REGISTER DATA
D12
D12
D4
X
X
X
X
X
X
X
X
X
Driver Address Register
D11
D11
D3
X
X
X
X
X
X
X
X
X
D10
D10
D2
X
X
X
X
X
X
X
X
X
D9
D9
D1
X
X
X
X
X
X
X
X
X
LSB
D8
D8
D0
X
X
X
X
X
X
X
X
X