M37516F8HP Renesas Electronics America, M37516F8HP Datasheet - Page 43

• Manufacturer Part Number: M37516F8HP
• Description: IC 740 MCU FLASH 32K 48QFP
• Manufacturer: Renesas Electronics America
• Series: 740/38000r

Specifications of M37516F8HP

• Core Processor: 740
• Core Size: 8-Bit
• Speed: 8MHz
• Connectivity: I²C, SIO, UART/USART
• Peripherals: PWM, WDT
• Number Of I /o: 38
• Program Memory Size: 32KB (32K x 8)
• Program Memory Type: FLASH
• Ram Size: 1K x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 5.5 V
• Data Converters: A/D 8x10b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 85°C
• Package / Case: 48-QFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -

7516 Group
Fig. 42 Structure of PWM control register
Fig. 43 PWM output timing when PWM register or PWM prescaler is changed
The PWM starts after the PWM function enable bit is set to enable and “L” level is output from the PWM pin.
The length of this “L” level output is as follows:
Rev.1.01
Note
b 7
P W M o u t p u t
2 • f(X
P W M r e g i s t e r
w r i t e s i g n a l
P W M p r e s c a l e r
w r i t e s i g n a l
Jul 01, 2003
f(X
n+1
n+1
IN
IN
)
When the contents of the PWM register or PWM prescaler have changed, the PWM
output will change from the next period after the change.
)
sec
sec
b 0
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P W M c o n t r o l r e g i s t e r
( P W M C O N : a d d r e s s 0 0 1 D
P W M f u n c t i o n e n a b l e b i t
C o u n t s o u r c e s e l e c t i o n b i t
N o t u s e d ( r e t u r n “ 0 ” w h e n r e a d )
0 : f ( X
1 : f ( X
0 : P W M d i s a b l e d
1 : P W M e n a b l e d
(Count source selection bit = 0, where n is the value set in the prescaler)
(Count source selection bit = 1, where n is the value set in the prescaler)
I N
I N
) ( f ( X
) / 2 ( f ( X
A
C I N
C I N
) a t l o w - s p e e d m o d e )
) / 2 a t l o w - s p e e d m o d e )
T
1 6
)
(Changes “H” term from “A” to “B”.)
(Changes PWM period from “T” to “T2”.)
B
T
C
T2
B
T
=
T 2
C