DF36034GFPJ Renesas Electronics America, DF36034GFPJ Datasheet - Page 418

• Manufacturer Part Number: DF36034GFPJ
• Description: MCU 3/5V 32K J-TEMP POR&LVD 64-L
• Manufacturer: Renesas Electronics America
• Series: H8® H8/300H Tinyr

Specifications of DF36034GFPJ

• Core Processor: H8/300H
• Core Size: 16-Bit
• Speed: 20MHz
• Connectivity: CAN, SCI, SSU
• Peripherals: LVD, POR, PWM, WDT
• Number Of I /o: 45
• Program Memory Size: 32KB (32K x 8)
• Program Memory Type: FLASH
• Ram Size: 2K x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 5.5 V
• Data Converters: A/D 8x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 64-LQFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -
• Other names: HD64F36034GFPJ; HD64F36034GFPJ

Section 17 Subsystem Timer (Subtimer)
The division ratio of the on-chip oscillator to make the subclock be the setting cycle can be
obtained by the following formula.
In the subtimer, relationship between the setting values in ROPCR and the division ratio is as
follows.
Then the setting value m in ROPCR can be obtained by assigning the value k obtained by formula
(2) to formula (3).
The cycle to be actually used as the subclock is as follows.
Therefore, the rounding error between the expected value and the setting value of the subclock
cycle can be obtained by the following formula.
[Legend]
t:
n:
T
T
T
k:
m:
Rev. 4.00 Mar. 15, 2006 Page 384 of 556
REJ09B0026-0400
RO
CAL
SUB
: On-chip oscillator cycle (calculated value)
: Subclock cycle (calculated value)
: Subclock setting cycle (expected value)
System clock cycle
SBTPS count value (for two cycles)
Division ratio for oscillation cycle of on-chip oscillator and subclock setting cycle
ROPCR setting value
2T
k =
k = 2 (m + 2) (Note that m
m =
T
CAL
=
RO
T
= 2 (m + 2) T
T
t
T
= t
T
SUB
SUB
SUB
RO
n
T
n
SUB
=
T
CAL
2 (Note that m
t
2
n
RO
100 (%) = 1
T
SUB
0)
=
0)
2
t
2
K
T
SUB
n
T
t
SUB
n
100 (%)
Formula (1)
Formula (2)
Formula (3)
Formula (4)
Formula (5)
Formula (6)