DS80CH11 Maxim, DS80CH11 Datasheet - Page 62

• Manufacturer Part Number: DS80CH11
• Description: The system energy manager is a highly integrated microcontroller that provides several key features for systems including key scanning and control, battery and power management, as well as two 2-Wire serial I/O Ports
• Manufacturer: Maxim

PWM CHANNEL BLOCK DIAGRAM Figure 11–3
11.5 PWM SPECIAL FUNCTION REGISTERS
A total of 12 SFR’s are used to control the four PWM
channels. The operation of these registers are summa-
rized below:
11.5.1 PW01CS / PW23CS – PWM 0, 1 / PWM 2, 3 Clock Select Registers
PW01CS; SFR ADDR.=0D5H
PW23CS; SFR ADDR.=0E5H
Read/Write Access: Unrestricted.
Initialization: 00H on any type of reset
PWnS2–0 – PWM n Clock Select Bits.
These three bits select one of four prescale frequencies
or an external pin as the input to the PWM n frequency
generator, which is then used as the clock source for
PWM channel n. The bit selections operate as follows:
DS80CH11
011200 62/88
PW0S2
PW2S2
BIT 7
BIT 7
PWM n CLOCK
PWn
DC
BIT
PW0S1
PW2S1
BIT 6
BIT 6
ZERO COMPARATOR
PW0S0
PW2S0
BIT 5
BIT 5
S
8–BIT TIMER
PW0EN
PW2EN
Q
BIT 4
BIT 4
R
MATCH COMPARATOR
PW1S2
PW3S2
BIT 3
BIT 3
PWnS2
PWn
BIT
OE
0
0
0
0
1
PWnS1
PWO.n
(P6.n ALT.
PIN FUINCTION)
PW1S1
PW3S1
BIT 2
BIT 2
X
0
0
1
1
PWn
BIT
F
PWnS0
X
0
1
0
1
PW1S0
PW3S0
BIT 1
BIT 1
REGISTER
PWM n CLOCK
PWn
T/C
PWI.n pin*
t
t
BIT
t
t
MCLK
MCLK
MCLK
MCLK
FREQ.
PW1EN
PW3EN
BIT 0
BIT 0
* 16
* 64
* 1
* 4