UPD78F1146AGB-GAH-AX Renesas Electronics America, UPD78F1146AGB-GAH-AX Datasheet - Page 57

• Manufacturer Part Number: UPD78F1146AGB-GAH-AX
• Description: MCU 16BIT 78K0R/KX3 64-LQFP
• Manufacturer: Renesas Electronics America
• Series: 78K0R/Kx3r

Specifications of UPD78F1146AGB-GAH-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: 50
• Program Memory Size: 256KB (256K x 8)
• Program Memory Type: FLASH
• Ram Size: 12K 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: *
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

3.1.2 Mirror area
flash area of 00000H to 0FFFFH or 10000H to 1FFFFH, to F0000H to FFFFFH (the data flash area to be mirrored is
set by the processor mode control register (PMC)).
used, and thus the contents of the data flash can be read with the shorter code. However, the data flash area is not
mirrored to the SFR, extended SFR, RAM, and use prohibited areas.
The
The
By reading data from F0000H to FFFFFH, an instruction that does not have the ES registers as an operand can be
See 3.1 Memory Space for the mirror area of each product.
The mirror area can only be read and no instruction can be fetched from this area.
The following show examples.
Remark MAA: Bit 0 of the processor mode control register (PMC).
PMC register is described below.
μ
μ
PD78F1142 and 78F1142A mirror the data flash area of 00000H to 0FFFFH, to F0000H to FFFFFH.
PD78F1143, 78F1143A, 78F1144, 78F1144A, 78F1145, 78F1145A, 78F1146, 78F1146A mirror the data
(Flash memory: 64 KB, RAM: 4 KB)
Example 1
F F F 0 0 H
F F E F F H
F 0 0 0 0 H
E F F F F H
1 0 0 0 0 H
0 F F F F H
0 1 0 0 0 H
0 0 F F F H
0 0 0 0 0 H
F F F F F H
F F E E 0 H
FFEDFH
F E F 0 0 H
FEEFFH
F 1 0 0 0 H
F 0 F F F H
F 0 8 0 0 H
F 0 7 F F H
0 E F 0 0 H
0 E E F F H
(same data as 01000H to 0EEFFH)
Special-function register (2nd
General-purpose register
Special-function register
Setting MAA = 0
μ
PD78F1142, 78F1142A
32 bytes
Flash memory
Flash memory
Flash memory
Flash memory
256 bytes
Reserved
Reserved
RAM
4 KB
2 KB
(SFR)
For example, 02345H is mirrored to
F2345H. Data can therefore be read by
MOV A, !2345H, instead of MOV ES,
#00H and MOV A, ES:!2345H.
SFR)
CHAPTER 3 CPU ARCHITECTURE
User’s Manual U17854EJ9V0UD
Mirror
(Flash memory: 256 KB, RAM: 12 KB)
Example 2
F F F F F H
F F F 0 0 H
F F E F F H
F 0 0 0 0 H
E F F F F H
4 0 0 0 0 H
3 F F F F H
F F E E 0 H
FFEDFH
F C F 0 0 H
FCEFFH
F 1 0 0 0 H
F 0 F F F H
F 0 8 0 0 H
F 0 7 F F H
1 C F 0 0 H
1CEFFH
1 1 0 0 0 H
1 0 F F F H
0 0 0 0 0 H
(same data as 11000H to 1CEFFH)
Special-function register (2nd
General-purpose register
Special-function register
Setting MAA = 1
μ
PD78F1146, 78F1146A
32 bytes
Flash memory
Flash memory
Flash memory
Flash memory
Reserved
256 bytes
Reserved
12 KB
RAM
2 KB
(SFR)
SFR)
For example, 15432H is mirrored to
F5432H. Data can therefore be read by
MOV A, !5432H, instead of MOV ES,
#01H and MOV A, ES:!5432H.
Mirror
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