STEVAL-TCS003V1 STMicroelectronics, STEVAL-TCS003V1 Datasheet - Page 16

• 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

I2C Interface
6.7
16/63
Operation modes
Table 14. Operation modes
Figure 3.
O n e B y te
R e a d
M o re th a n
O n e B y te
R e a d
O n e B y te
W rite
M o re th a n
O n e B y te
W rite
Mode
Read
Write
Master/slave operation modes
Bytes
≥1
≥1
A d d r
A d d r
A d d r
A d d r
D e v
D e v
D e v
D e v
M a s te r
S la v e
START, Device Address, R/W = 0, Register Address to be read
reSTART, Device Address, R/W = 1, Data Read, STOP
If no STOP is issued, the Data Read can be continuously preformed. If
the register address falls within the range that allows address auto-
increment, then register address auto-increments internally after every
byte of data being read. For register address that falls within a non-
incremental address range, the address will be kept static throughout
the entire read operations. Refer to the Memory Map table for the
address ranges that are auto and non-increment. An example of such
a non-increment address is FIFO.
START, Device Address, R/W = 0, Register Address to be written, Data
Write, STOP
If no STOP is issued, the Data Write can be continuously performed. If
the register address falls within the range that allows address auto-
increment, then register address auto-increments internally after every
byte of data being written in. For register address that falls within a
non-incremental address range, the address will be kept static
throughout the entire write operations. Refer to the Memory Map table
for the address ranges that are auto and non-increment. An example of
a non-increment address is Data Port for initializing the PWM
commands.
A d d r
A d d r
A d d r
A d d r
R e g
R e g
R e g
R e g
Programming Sequence
D a ta to
W ritte n
D a ta to
W rite
b e
A d d r
A d d r
D e v
D e v
W rite + 1
D a ta to
R e a d
R e a d
D a ta
D a ta
W rite + 2
D a ta to
R e a d + 1
D a ta
STMPE2403
R e a d
D a