UPD78F1174AGF-GAT-AX Renesas Electronics America, UPD78F1174AGF-GAT-AX Datasheet - Page 188

• Manufacturer Part Number: UPD78F1174AGF-GAT-AX
• Description: MCU 16BIT 78K0R/KX3 128-LQFP
• Manufacturer: Renesas Electronics America
• Series: 78K0R/Kx3r

Specifications of UPD78F1174AGF-GAT-AX

• Core Processor: 78K/0R
• Core Size: 16-Bit
• Speed: 20MHz
• Connectivity: 3-Wire SIO, EBI/EMI, I²C, LIN, UART/USART
• Peripherals: DMA, LVD, POR, PWM, WDT
• Number Of I /o: 111
• Program Memory Size: 128KB (128K x 8)
• Program Memory Type: FLASH
• Ram Size: 8K x 8
• Voltage - Supply (vcc/vdd): 1.8 V ~ 5.5 V
• Data Converters: A/D 16x10b; D/A 2x8b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: *
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

(2) Memory extension mode control register (MEM)
186
Address: FFFFFH
Symbol
MEM
Note In the 8-bit bus mode, 16-bit access instructions cannot be used.
MEM is a register that sets an external extension area.
MEM can be set by a 1-bit or 8-bit manipulation instruction.
Reset signal generation clears this register to 00H.
EXWEN
EXEN
EXEN
MM3
MM2
MM1
EW1
0
1
0
1
0
0
1
1
0
1
0
1
0
0
1
1
7
After reset: 00H
Figure 5-3. Format of Memory Extension Mode Control Register (MEM)
Single-chip mode (Port function is valid.)
External bus interface is used.
External wait pin is not used and can be used as a port.
External wait pin is used.
Multiplexed bus mode
(Can be selected only for accessing memory and cannot be selected for fetching.)
Separate bus mode
8-bit bus mode
(Can be selected only for accessing memory and cannot be selected for fetching.)
16-bit bus mode
EXWEN
EW0
MM0
6
0
1
0
1
0
1
0
1
f
f
f
f
256-byte extension mode. 8 address bus pins are used.
4 KB extension mode. 12 address bus pins are used.
64 KB extension mode. 16 address bus pins are used.
Full address mode. 20 address bus pins are used.
CLK
CLK
CLK
CLK
Note
CHAPTER 5 EXTERNAL BUS INTERFACE
R/W
EW1
/2
/3
/4
5
Bus mode switching of external bus interface
Bus width selection of external bus interface
User’s Manual U18432EJ5V0UD
External bus interface enable flag
EW0
External wait pin enable signal
4
CLKOUT pin output clock selection
MM3
Mode selection
3
MM2
2
MM1
1
MM0
0