HD64F36912GFH Renesas Electronics America, HD64F36912GFH Datasheet - Page 74
HD64F36912GFH
Manufacturer Part Number
HD64F36912GFH
Description
IC H8 MCU FLASH 8K 32-QFP
Manufacturer
Renesas Electronics America
Series
H8® H8/300H Tinyr
Datasheet
1.DF36912GFHV.pdf
(442 pages)
Specifications of HD64F36912GFH
Core Processor
H8/300H
Core Size
16-Bit
Speed
12MHz
Connectivity
I²C, SCI
Peripherals
LVD, POR, PWM, WDT
Number Of I /o
18
Program Memory Size
8KB (8K x 8)
Program Memory Type
FLASH
Ram Size
1.5K x 8
Voltage - Supply (vcc/vdd)
3 V ~ 5.5 V
Data Converters
A/D 4x10b
Oscillator Type
Internal
Operating Temperature
-20°C ~ 75°C
Package / Case
32-LQFP
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Eeprom Size
-
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
HD64F36912GFH
Manufacturer:
Renesas Electronics America
Quantity:
10 000
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Section 2 CPU
(2)
Example 3: BCLR instruction executed designating port 5 control register PCR5
P57 and P56 are input pins, with a low-level signal input at P57 and a high-level signal input at
P56. P55 to P50 are output pins that output low-level signals. An example of setting the P50 pin as
an input pin by the BCLR instruction is shown below. It is assumed that a high-level signal will be
input to this input pin.
[BCLR instruction executed]
[After executing BCLR]
[Description on operation]
1. When the BCLR instruction is executed, first the CPU reads PCR5. Since PCR5 is a write-only
2. Next, the CPU clears bit 0 in the read data to 0, changing the data to H'FE.
3. Finally, H'FE is written to PCR5 and BCLR instruction execution ends.
Rev. 3.00 Sep. 14, 2006 Page 44 of 408
REJ09B0105-0300
Input/output
Pin state
PCR5
PDR5
BCLR
Input/output
Pin state
PCR5
PDR5
[Prior to executing BCLR]
register, the CPU reads a value of H'FF, even though the PCR5 value is actually H'3F.
Bit Manipulation in a Register Containing a Write-Only Bit
#0,
P57
Input
Low
level
0
1
P57
Output
Low
level
1
1
@PCR5
P56
Input
High
level
0
0
P56
Output
High
level
1
0
P55
Output
Low
level
1
0
P55
Output
Low
level
1
0
The BCLR instruction is executed for PCR5.
P54
Output
Low
level
1
0
P54
Output
Low
level
1
0
P53
1
0
P53
0
Output
Low
level
Output
Low
level
1
P52
Output
Low
level
1
0
P52
Output
Low
level
1
0
P51
Output
Low
level
1
0
P51
Output
Low
level
1
0
P50
Output
Low
level
1
0
P50
Input
High
level
0
0
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