STEVAL-TCS003V1 STMicroelectronics, STEVAL-TCS003V1 Datasheet - Page 57

• Manufacturer Part Number: STEVAL-TCS003V1
• Description: BOARD DEMO EXPANDER STMPE2403
• Manufacturer: STMicroelectronics

Specifications of STEVAL-TCS003V1

• Main Purpose: Interface, GPIO Expander
• Embedded: No
• Utilized Ic / Part: STMPE2403
• Primary Attributes: 8/16/24-Bit 24-Port GPIO Expander over I2C
• Secondary Attributes: 3 8-Bit PWM Output for LEDs, Keyboard Matrix Scan, Special Key Support
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 497-8206

STMPE2403
Figure 13. Registers for rotator control
Rotator_Control
Table 57. Bit description
Rotator_Buffer
Table 58. Bit description
The host should do the following on the I2C bus to start the Rotator controller:
1.
2.
3.
4.
5.
Reset Value
Reset Value
Read/Write
Read/Write
Bits
Bits
6~0
The host writes to GPIO Controller to select the Rotator Bits on the relevant IO.
Write Rotator_Control data register to start the rotator controller. A maximum of 2
rotations later, the correct initial state on the rotator FSM is obtained. Scanning for
rotator movement continues.
The host waits for interrupt from the rotator controller.
The host reads Rotator_Buffer
The host can stop rotator controller operation by writing to Rotator_Control register.
Bit
Bit
7
7
Address
0x70
0x72
Symbol_Count Number of symbols of the type specified by bit 7
Start_FSM
Start_FSM
Symbol_Type
Symbol_Type
Name
RW
Name
7
0
R
7
0
Reserved
Rotator FSM start bit.
‘1’ – Activate the FSM
‘0’ – Stop sampling rotator symbols
R
6
0
Symbol type to be reported
‘1’ – Down
‘0’ – Up
Minimum of 0 (b’0000000) to
Maximum of 127 (b’1111111)
R
6
0
R
5
0
Rotator_Control
Register name
Rotator_Buffer
R
5
0
R
4
0
R
4
0
Description
Symbol_Count
Description
R
3
0
R
3
0
R
2
0
R
2
0
Register size
Rotator controller
8
8
R
1
0
R
1
0
R
0
0
R
0
0
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