L9803 STMicroelectronics, L9803 Datasheet - Page 65

• Manufacturer Part Number: L9803
• Description: Super Smart Power Motor Driver With 8-bit Mcu, Ram, Eeprom, Adc, Wdg, Timers, Pwm And H-bridge Driver
• Manufacturer: STMicroelectronics

L9803
Read/Write
Reset Value: 0000 0000 (00h)
Bit 0= EN _PWM: 1 = enables the PWM output, 0 = disables PWM output.
Bit 1= EN _INT: 1 = enables interrupt request, 0 disables interrupt request.
Bit 4, 3, 2= PS2,PS1,PS0: prescaler bits
The value of the PWM internal clock depends on these bits.
Bit 5, 6, 7= not used.
PWM COUNTER REGISTER LOW (CTL)
PWM1 Register Address: 0016h
PWM2 Register Address: 001Eh
Read Only
Reset Value: 0000 0000 (00h)
This is an 8-bit register that contains the low part of the PWM counter value.
PWM COUNTER REGISTER HIGH(CTH)
PWM1 Register Address: 0015h
PWM2 Register Address: 001Dh
Read Only
Reset Value: 0000 0000 (00h)
This is an 8-bit register that contains the high part of the PWM counter value.
MSB
7
0
7
PS2
0
0
0
0
1
1
1
1
0
PS1
0
0
1
1
0
0
1
1
0
PS2
4
PS0
0
1
0
1
0
1
0
1
PS1
3
PS0
2
internal clock
On-Chip Peripherals
f
f
f
f
f
CPU
CPU
EN_ INT
f
f
CPU
CPU
CPU
PWM
CPU
CPU
f
CPU
/ 128
/ 16
/ 32
/ 64
1
/ 4
/ 8
/ 2
EN_ PWM
LSB
0
0
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