STMPE2403TBR STMicroelectronics, STMPE2403TBR Datasheet - Page 45

• Manufacturer Part Number: STMPE2403TBR
• Description: IC I/O EXPANDER I2C 24B 36TFBGA
• Manufacturer: STMicroelectronics

Specifications of STMPE2403TBR

• Interface: I²C
• Number Of I /o: 24
• Interrupt Output: Yes
• Frequency - Clock: 400kHz
• Voltage - Supply: 1.65 V ~ 1.95 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 36-TFBGA
• Includes: Keypad, POR, PWM
• For Use With: 497-8206 - BOARD DEMO EXPANDER STMPE2403
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

STMPE2403
Table 44. Instruction bit
1. Don’t care
Instruction
BRANCH
reserved
RAMP
LOAD
TRIG
END
GTS
0
0
0
1
1
1
1
In order to enable a PWM channel, the programming sequence below should be observed.
●
●
●
●
●
15
The ENx of the PWMCS register should be kept in ‘0’. By default, it has a value of ‘0’.
Loads the instructions into the PWM channel x by writing the corresponding PWMICx.
The PWM channel x has a 64-word depth (16-bit width). Any instructions of size less
than or equal to 64 words can be loaded into the channel. Any attempt to load beyond
64 words will result in internal address pointer to roll-over (0x1f ◊ 0x00) and the excess
instructions to be over-written into the first address location of the channel and
onwards.
After the instructions are loaded in, then, the PWM channel x can be enabled by setting
a ‘1’ to the ENx bit.
Enables the corresponding interrupt mask bit to allow interruption to the host.
Prescale
1
0=16
1=512
0
01
10
11
00
14
Step Time
0 - 63
0 = immediate action
0
0
13
Loop Count 0-63
Interrupt
to host
Wait for Trigger
on channel 0 – 2 and external Trigger
Continues if all selected triggers present.
Each bit signifies wait for the corresponding
channel.
RESERVED
12
Reset
instructio
n counter
and
output
level to
zero
11
10
RESERVED
9
Bit
8
Sign
0=step-up
1=step-down
PWM Value 0-255
0
7
Increment
1 – 126
0
Addr
Send Trigger
on channel 0 – 2 and
external Trigger
Continues if no Wait for
Trigger in this
instruction.
6
Step Size
0 – 63*
5
4
PWM controller
3
2
1
45/63
x
(1)
0