UPD70F3786GJ-GAE-AX Renesas Electronics America, UPD70F3786GJ-GAE-AX Datasheet - Page 196
UPD70F3786GJ-GAE-AX
Manufacturer Part Number
UPD70F3786GJ-GAE-AX
Description
MCU 32BIT V850ES/JX3-E 144-LQFP
Manufacturer
Renesas Electronics America
Series
V850ES/Jx3-Er
Datasheet
1.UPD70F3778GF-GAT-AX.pdf
(1817 pages)
Specifications of UPD70F3786GJ-GAE-AX
Core Processor
RISC
Core Size
32-Bit
Speed
50MHz
Connectivity
CAN, CSI, EBI/EMI, Ethernet, I²C, UART/USART, USB
Peripherals
DMA, LVD, PWM, WDT
Number Of I /o
100
Program Memory Size
512KB (512K x 8)
Program Memory Type
FLASH
Ram Size
124K x 8
Voltage - Supply (vcc/vdd)
2.85 V ~ 3.6 V
Data Converters
A/D 12x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
*
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
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Part Number:
UPD70F3786GJ-GAE-AX
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Quantity:
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Part Number:
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4.5.2
of the output latch of an input port that is not subject to manipulation may be written in addition to the targeted bit.
194
P91 to P97
When a 1-bit manipulation instruction is executed on a port that provides both input and output functions, the value
Therefore, it is recommended to rewrite the output latch when switching a port from input mode to output mode.
<Example>
Port 9L latch
0
Cautions on bit manipulation instruction for port n register (Pn)
P90
0
0
When the P90 pin is an output port, the P91 to P97 pins are input ports (all pin statuses are high
level), and the value of the port latch is 00H, if the output of the P90 pin is changed from low level to
high level via a bit manipulation instruction, the value of the port latch is FFH.
Explanation: The targets of writing to and reading from the Pn register of a port whose PMnm bit is
1 are the output latch and pin status, respectively.
A bit manipulation instruction is executed in the following order in the V850ES/JH3-E and
V850ES/JJ3-E.
<1> The Pn register is read in 8-bit units.
<2> The targeted bit is manipulated.
<3> The Pn register is written in 8-bit units.
In step <1>, the value of the output latch (0) of the P90 pin, which is an output port, is read, while
the pin statuses of the P91 to P97 pins, which are input ports, are read. If the pin statuses of the
P91 to P97 pins are high level at this time, the read value is FEH.
The value is changed to FFH by the manipulation in <2>.
FFH is written to the output latch by the manipulation in <3>.
Bit manipulation instruction for P90 bit
<1> P9L register is read in 8-bit units.
<2> Set (1) P90 bit.
<3> Write the results of <2> to the output latch of P9L register in 8-bit units.
0
• In the case of P90, an output port, the value of the port latch (0) is read.
• In the case of P91 to P97, input ports, the pin status (1) is read.
0
Pin status: High level
Low-level output
Figure 4-6. Bit Manipulation Instruction (P90 Pin)
0
0
CHAPTER 4 PORT FUNCTIONS
0
User’s Manual U19601EJ2V0UD
Bit manipulation
instruction
(set1 0, P9L[r0])
is executed for
P90 bit.
P91 to P97
Port 9L latch
1
P90
1
1
1
1
Pin status: High level
High-level output
1
1
1
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