M308A5SGP#U5 Renesas Electronics America, M308A5SGP#U5 Datasheet - Page 23

• Manufacturer Part Number: M308A5SGP#U5
• Description: MCU ROMLESS 12K RAM 144-LQFP
• Manufacturer: Renesas Electronics America
• Series: M16C™ M32C/80r

Specifications of M308A5SGP#U5

• Core Processor: M32C/80
• Core Size: 16/32-Bit
• Speed: 32MHz
• Connectivity: EBI/EMI, I²C, IEBus, UART/USART
• Peripherals: DMA, WDT
• Number Of I /o: 81
• Program Memory Type: ROMless
• Ram Size: 24K x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 5.5 V
• Data Converters: A/D 18x10b, D/A 2x8b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 85°C
• Package / Case: 144-LQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Program Memory Size: -

M32C/8A Group
REJ03B0213-0111 Rev.1.11 Mar 31, 2009
Page 21 of 66
3.
Figure 3.1 shows a memory map of the M32C/8A Group.
The M32C/8A Group has 16-Mbyte address space from addresses 000000h to FFFFFFh.
The fixed interrupt vectors are allocated in addresses FFFFDCh to FFFFFFh. They store the starting address of each
interrupt routine.
The internal RAM is allocated higher addresses, beginning with address 000400h. For example, a 12-Kbyte internal
RAM area is allocated in addresses 000400h to 0033FFh. The internal RAM is used not only for storing data but for
the stacks when subroutines are called or when interrupt requests are acknowledged.
SFRs are allocated in addresses 000000h to 0003FFh. The peripheral function control registers such as for I/O ports,
A/D converters, serial interfaces, timers are allocated here. All blank spaces within SFRs are reserved and cannot be
accessed by users.
The special page vectors are allocated addresses FFFE00h to FFFFDBh. They are used for the JMPS instruction and
JSRS instruction. Refer to the Renesas publication M32C/80 Series Software Manual for details.
Figure 3.1
Memory
NOTE:
1. The watchdog timer interrupt, oscillation stop detection interrupt , and Vdet4 detection interrupt use the same vector.
000000h
000400h
XXXXXXh
010000h
FFFFFFh
Memory Map
External Space
Internal RAM
Reserved
SFR
FFFFDCh
FFFE00h
FFFFFFh
Undefined instruction
Watchdog timer
BRK instruction
Address match
Special page
vector table
Overflow
Reset
NMI
(1)
12 Kbytes
24 Kbytes
Capacity
Internal RAM
XXXXXXh
0033FFh
0063FFh
3. Memory