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AS1106, AS1107
Datasheet - D e t a i l e d D e s c r i p t i o n
8.4 Shutdown Mode
The AS1106/AS1107 devices feature a shutdown mode, where they consume only 10μA (max) current. Shutdown mode is entered via a write to
the Shutdown Register (see Table 8 ). For the AS1106, at that point, all segment current sources are pulled to ground and all digit drivers are
connected to V DD , so that all segments are blanked. The AS1107 behavior is identical except the drivers are high impedance.
Note: During shutdown mode the Digit-Registers maintain their data.
Shutdown mode can either be used as a means to reduce power consumption or for generating a flashing display (repeatedly entering and
leaving shutdown mode). For minimum supply current in shutdown mode, logic input should be at GND or V DD (CMOS logic level).
The devices need typically 250μs to exit shutdown mode, and during shutdown mode the AS1106/AS1107 is fully programmable. Only the
display test mode (see page 11) overrides shutdown mode.
When entering or leaving shutdown mode, the Feature Register is reset to its default values (all 0s) when Shutdown Register bit D7 (page 10) =
0.
1
Note: If the AS1106/AS1107 is used with an external clock, Shutdown Register bit D7 should be set to 1 when writing to the Shutdown Regis-
ter.
8.5 Digit- and Control-Registers
The AS1106/AS1107 devices contain 8 Digit-Registers and 6 control-registers, which are listed in Table 7 . All registers are selected using a 4-bit
address word, and communication is done via the serial interface.
Digit Registers – These registers are realized with an on-chip 64-bit memory. Each digit can be controlled directly without rewriting the
whole register contents.
Control Registers – These registers consist of decode mode, display intensity, number of scanned digits, shutdown, display test and fea-
tures selection registers.
Table 7. Register Address Map
Register
No-Op
Digit 0
Digit 1
Digit 2
Digit 3
Digit 4
Digit 5
Digit 6
Digit 7
Decode-Mode
Intensity Control
Scan Limit
Shutdown
N/A
Feature
Display Test
HEX Code
0xX0
0xX1
0xX2
0xX3
0xX4
0xX5
0xX6
0xX7
0xX8
0xX9
0xXA
0xXB
0xXC
0xXD
0xXE
0xXF
D15:D12
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
D11
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
Address
D10
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
D9
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
D8
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
Page
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
1. When Shutdown Register bit D7 = 1, the Feature Register is left unchanged when entering or leaving shutdown mode.
Revision 2.28
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功能描述:显示开发工具 RoHS:否 制造商:4D Systems 产品:4Display Shields 工具用于评估:?OLED-160-G1, ?OLED-160-G2 接口类型:Serial 工作电源电压:5 V
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