UPD78F1001GB-GAF-AX Renesas Electronics America, UPD78F1001GB-GAF-AX Datasheet - Page 857
UPD78F1001GB-GAF-AX
Manufacturer Part Number
UPD78F1001GB-GAF-AX
Description
MCU 16BIT 78K0R/KX3-L 44-LQFP
Manufacturer
Renesas Electronics America
Series
78K0R/Kx3-Lr
Datasheet
1.UPD78F1000GB-GAF-AX.pdf
(1171 pages)
Specifications of UPD78F1001GB-GAF-AX
Core Processor
78K/0R
Core Size
16-Bit
Speed
20MHz
Connectivity
3-Wire SIO, I²C, LIN, UART/USART
Peripherals
DMA, LVD, POR, PWM, WDT
Number Of I /o
33
Program Memory Size
32KB (32K x 8)
Program Memory Type
FLASH
Ram Size
1.5K x 8
Voltage - Supply (vcc/vdd)
1.8 V ~ 5.5 V
Data Converters
A/D 10x10b
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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Company:
Part Number:
UPD78F1001GB-GAF-AX
Manufacturer:
Renesas Electronics America
Quantity:
10 000
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78K0R/Kx3-L
17.4 Operation of DMA Controller
17.4.1 Operation procedure
R01UH0106EJ0300 Rev.3.00
Oct 01, 2010
<1> The DMA controller is enabled to operate when DENn = 1. Before writing the other registers, be sure to set the
<2> Set an SFR address, a RAM address, the number of times of transfer, and a transfer mode of DMA transfer to
<3> The DMA controller waits for a DMA trigger when DSTn = 1. Use 81H to write with an 8-bit manipulation
<4> When a software trigger (STGn) or a start source trigger specified by the IFCn3 to IFCn0 bits is input, a DMA
<5> Transfer is completed when the number of times of transfer set by the DBCn register reaches 0, and transfer is
<6> Stop the operation of the DMA controller by clearing the DENn bit to 0 when the DMA controller is not used.
Remark
DENn bit to 1. Use 80H to write with an 8-bit manipulation instruction.
DMA SFR address register n (DSAn), DMA RAM address register n (DRAn), DMA byte count register n (DBCn),
and DMA mode control register n (DMCn).
instruction.
transfer is started.
automatically terminated by occurrence of an interrupt (INTDMAn).
n: DMA channel number (n = 0, 1)
Setting DSAn, DRAn, DBCn, and DMCn
Receiving DMA acknowledge
Transmitting DMA request
DRAn = DRAn + 1 (or + 2)
Figure 17-6. Operation Procedure
DBCn = DBCn − 1
DMA trigger = 1?
DBCn = 0000H ?
INTDMAn = 1
DMA transfer
DENn = 1
DSTn = 1
DSTn = 0
DENn = 0
Yes
Yes
No
No
CHAPTER 17 DMA CONTROLLER
Set by software program
Operation by DMA
controller (hardware)
Set by software program
857
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