UPD70F3785GJ-GAE-AX Renesas Electronics America, UPD70F3785GJ-GAE-AX Datasheet - Page 203
UPD70F3785GJ-GAE-AX
Manufacturer Part Number
UPD70F3785GJ-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 UPD70F3785GJ-GAE-AX
Core Processor
RISC
Core Size
32-Bit
Speed
50MHz
Connectivity
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
-
Available stocks
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Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
UPD70F3785GJ-GAE-AX
Manufacturer:
Renesas Electronics America
Quantity:
10 000
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5.4.3
32-bit units. The bus size is as follows.
side.
The V850ES/JH3-E and V850ES/JJ3-E access the on-chip peripheral I/O and external memory in 8-bit, 16-bit, or
• The bus size of the on-chip peripheral I/O is fixed to 16 bits.
• The bus size of the external memory is selectable from 8 bits or 16 bits (by using the BSC register).
The operation when each of the above is accessed is described below. All data is accessed starting from the lower
The V850ES/JH3-E and V850ES/JJ3-E support only the little-endian format.
(1) Data space
The V850ES/JH3-E and V850ES/JJ3-E have an address misalign function.
With this function, data can be placed at all addresses, regardless of the format of the data (word data or
halfword data). However, if the word data or halfword data is not aligned at the boundary, a bus cycle is
generated at least twice, causing the bus efficiency to drop.
(a) Halfword-length data access
(b) Word-length data access
Access by bus size
A byte-length bus cycle is generated twice if the least significant bit of the address is 1.
(i) A byte-length bus cycle, halfword-length bus cycle, and byte-length bus cycle are generated in that
(ii) A halfword-length bus cycle is generated twice if the lower 2 bits of the address are 10.
order if the least significant bit of the address is 1.
31
000BH
0007H
0003H
Figure 5-2. Little-Endian Address in Word
24 23
CHAPTER 5 BUS CONTROL FUNCTION
User’s Manual U19601EJ2V0UD
000AH
0006H
0002H
16 15
0009H
0005H
0001H
8 7
0008H
0004H
0000H
0
201
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