UPD78F1146AGB-GAH-AX Renesas Electronics America, UPD78F1146AGB-GAH-AX Datasheet - Page 58

• 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: -

• Processor mode control register (PMC)
3.1.3 Internal data memory space
Four general-purpose register banks consisting of eight 8-bit registers per bank are assigned to the 32-byte area of
FFEE0H to FFEFFH of the internal RAM area. However, instructions cannot be executed by using general-purpose
registers.
56
This register selects the flash memory space for mirroring to area from F0000H to FFFFFH.
PMC can be set by a 1-bit or 8-bit memory manipulation instruction.
Reset signal generation sets this register to 00H.
Cautions 1. Set PMC only once during the initial settings prior to operating the DMA controller. Rewriting
78K0R/KE3 products incorporate the following RAMs.
The internal RAM can be used as a data area and a program area where instructions are written and executed.
The internal RAM is used as a stack memory.
Cautions 1. It is prohibited to use the general-purpose register (FFEE0H to FFEFFH) space for fetching
Address: FFFFEH After reset: 00H R/W
Symbol
PMC
2. After setting PMC, wait for at least one instruction and access the mirror area.
3. When the
2. While using the self-programming function, the area of FFE20H to FFEFFH cannot be used as
Figure 3-6. Format of Configuration of Processor Mode Control Register (PMC)
PMC other than during the initial settings is prohibited.
instructions or as a stack area.
a stack memory. Furthermore, the areas of FCF00H to FD6FFH cannot be used with the
μ
PD78F1146 and 78F1146A,.
μ
μ
μ
μ
μ
PD78F1142, 78F1142A
PD78F1143, 78F1143A
PD78F1144, 78F1144A
PD78F1145, 78F1145A
PD78F1146, 78F1146A
MAA
7
0
0
1
μ
Part Number
PD78F1142 or 78F1142A is used, be sure to set bit 0 (MAA) of this register to 0.
00000H to 0FFFFH is mirrored to F0000H to FFFFFH
10000H to 1FFFFH is mirrored to F0000H to FFFFFH
Selection of flash memory space for mirroring to area from F0000H to FFFFFH
6
0
Table 3-4. Internal RAM Capacity
CHAPTER 3 CPU ARCHITECTURE
User’s Manual U17854EJ9V0UD
5
0
4096 × 8 bits (FEF00H to FFEFFH)
6144 × 8 bits (FE700H to FFEFFH)
8192 × 8 bits (FDF00H to FFEFFH)
10240 × 8 bits (FD700H to FFEFFH)
12288 × 8 bits (FCF00H to FFEFFH)
4
0
Internal RAM
3
0
2
0
1
0
MAA
<0>