DF38122HWV Renesas Electronics America, DF38122HWV Datasheet - Page 255
DF38122HWV
Manufacturer Part Number
DF38122HWV
Description
IC H8/38122 MCU FLASH 80QFP
Manufacturer
Renesas Electronics America
Series
H8® H8/300L SLPr
Datasheet
1.US38024-BAG1.pdf
(684 pages)
Specifications of DF38122HWV
Core Processor
H8/300L
Core Size
8-Bit
Speed
10MHz
Connectivity
SCI
Peripherals
LCD, POR, PWM, WDT
Number Of I /o
50
Program Memory Size
16KB (16K x 8)
Program Memory Type
FLASH
Ram Size
1K x 8
Voltage - Supply (vcc/vdd)
1.8 V ~ 5.5 V
Data Converters
A/D 8x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
80-QFP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
- Current page: 255 of 684
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Bit 2—Reserved
This bit is reserved; it can only be written with 0.
Bits 1 and 0—P9 n /PWM Pin Function Switches
These pins select whether pin P9n/PWMn+1 is used as P9n or as PWMn+1.
Bit n
WKPn+1
0
1
from 1 to 0 only when the PIOFF bit is cleared to 0. Also, if a large current flow is
required, the PIOFF bit should be set to 1 and all the port data bits set to 1. Then clear
PIOFF to 0 and, after allowing 30 clock cycles to permit stabilization of the voltage
boost circuit, clear the port data bits to 0. If time is not provided to allow the voltage
boost circuit to stabilize, it will not be possible to produce a large current flow. There are
no such restrictions when setting port data bits from 0 to 1, regardless of the size of the
current flow. To shut down the voltage boost circuit, set PIOFF to 1 after programming
the port data bits. An example of the sequence of steps is provided below.
(Example Procedure)
Description
Functions as P9
Functions as PWM
n
output pin
n+1
Shutting Down the in the Watch Mode without a Large Current
Flow to Port 9
PIOFF = 0 (voltage boost circuit on)
PIOFF = 1 (voltage boost circuit off)
output pin
PDR9 operation or other operation
Execute SLEEP instruction
Cancel watch mode
Other operation
Watch mode
Rev. 8.00 Mar. 09, 2010 Page 233 of 658
Section 8 I/O Ports
REJ09B0042-0800
(initial value)
(n = 0 or 1)
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