HD6473837HV Renesas Electronics America, HD6473837HV Datasheet - Page 99
HD6473837HV
Manufacturer Part Number
HD6473837HV
Description
MCU 3/5V 60K PB-FREE 100-QFP
Manufacturer
Renesas Electronics America
Series
H8® H8/300Lr
Datasheet
1.HD6473837HV.pdf
(562 pages)
Specifications of HD6473837HV
Core Processor
H8/300L
Core Size
8-Bit
Speed
5MHz
Connectivity
SCI
Peripherals
LCD, PWM
Number Of I /o
84
Program Memory Size
60KB (60K x 8)
Program Memory Type
OTP
Ram Size
2K x 8
Voltage - Supply (vcc/vdd)
2.7 V ~ 5.5 V
Data Converters
A/D 12x8b
Oscillator Type
Internal
Operating Temperature
-20°C ~ 75°C
Package / Case
100-QFP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
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When CCR contents are saved to the stack during interrupt exception handling or restored when
RTE is executed, this also takes place in word size. Both the upper and lower bytes of word data
are saved to the stack; on return, the even address contents are restored to CCR while the odd
address contents are ignored.
3.4.2
When a port mode register is rewritten to switch the functions of external interrupt pins, the
following points should be observed.
When an external interrupt pin function is switched by rewriting the port mode register that
controls these pins (IRQ
at the time the pin function is switched, even if no valid interrupt is input at the pin. Be sure to
clear the interrupt request flag to 0 after switching pin functions. Table 3.5 shows the conditions
under which interrupt request flags are set to 1 in this way.
82
SP
Notation:
PC
PC
R1L:
SP:
H
L
:
:
SP set to H'FEFF
Notes on Rewriting Port Mode Registers
Upper byte of program counter
Lower byte of program counter
General register R1L
Stack pointer
Figure 3.7 Operation when Odd Address is Set in SP
BSR instruction
4
to IRQ
0
SP
, and WKP
Stack accessed beyond SP
7
PC
PC
to WKP
H
L
0
), the interrupt request flag may be set to 1
MOV. B R1L, @–R7
SP
Contents of PC are lost
PC
R1L
L
H
H'FEFC
H'FEFD
H'FEFF
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