HD64F3642AH Renesas Electronics America, HD64F3642AH Datasheet - Page 40
HD64F3642AH
Manufacturer Part Number
HD64F3642AH
Description
IC H8 MCU FLASH 16K 64QFP
Manufacturer
Renesas Electronics America
Series
H8® H8/300Lr
Datasheet
1.HD64F3644HV.pdf
(551 pages)
Specifications of HD64F3642AH
Core Processor
H8/300L
Core Size
8-Bit
Speed
8MHz
Connectivity
SCI
Peripherals
PWM, WDT
Number Of I /o
53
Program Memory Size
16KB (16K 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 8x8b
Oscillator Type
Internal
Operating Temperature
-20°C ~ 75°C
Package / Case
64-QFP
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Eeprom Size
-
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Section 2 CPU
2.2
2.2.1
All the general registers can be used as both data registers and address registers.
When used as data registers, they can be accessed as 16-bit registers (R0 to R7), or the high bytes
(R0H to R7H) and low bytes (R0L to R7L) can be accessed separately as 8-bit registers.
When used as address registers, the general registers are accessed as 16-bit registers (R0 to R7).
R7 also functions as the stack pointer (SP), used implicitly by hardware in exception processing
and subroutine calls. When it functions as the stack pointer, as indicated in figure 2.2, SP (R7)
points to the top of the stack.
2.2.2
The CPU control registers include a 16-bit program counter (PC) and an 8-bit condition code
register (CCR).
Program Counter (PC): This 16-bit register indicates the address of the next instruction the CPU
will execute. All instructions are fetched 16 bits (1 word) at a time, so the least significant bit of
the PC is ignored (always regarded as 0).
Rev. 6.00 Sep 12, 2006 page 18 of 526
REJ09B0326-0600
General Registers
SP (R7)
Control Registers
Register Descriptions
Figure 2.2 Stack Pointer
Lower address side [H'0000]
Upper address side [H'FFFF]
Unused area
Stack area
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