32182 datasheet(137/755 Pages) RENESAS

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6-2

INTERNAL MEMORY

32182 Group User’s Manual (Rev.1.0)

6.1 Outline of the Internal Memory

The 32182 internally contains the following types of memory:

• 64-Kbyte RAM

• 384-Kbytes flash memory

6.2 Internal RAM

Specifications of the internal RAM are shown below.

Table 6.2.1 Specifications of the Internal RAM

Item

Specification

Size

64 Kbytes

Location address

H’0080 4000 to H’0081 3FFF

Wait insertion

Operates with zero wait states

Internal bus connection

Connected by 32-bit bus

Dual port

By using the Real-Time Debugger (RTD), data can be read (monitored) or written to any area of

the internal RAM via serial communication from external devices independently of the CPU. (See

Chapter 14, “Real-Time Debugger.”)

Notes: • Immediately after power-on reset (for the power-on case in which VDDE also goes up from GND), the value of the

RAM is undefined.

• If the RAM is reset during RAM backup (power for only VDDE is on), the RAM retains the value it had immediately

before being reset.

6.3 Internal Flash Memory

Specifications of the internal flash memory are shown below.

Table 6.3.1 Specifications of the Internal Flash Memory

Item

Specification

Size

M32182F3: 384 Kbytes

M32182F8: 1 Mbyte

Location address

M32182F3: H’0000 0000 to H’0005 FFFF

M32182F8: H’0000 0000 to H’000F FFFF

Wait insertion

Operates with one wait state

Durability

Can be rewritten 100 times

Internal bus connection

Instruction access: Connected by 64-bit bus (Transfer rates equivalent to zero wait states on 32-bit

bus are possible.)

Data access: Connected by 32-bit bus

Other

Virtual flash emulation function is incorporated. (See Section 6.6, “Virtual Flash Emulation Function.”)

6.1 Outline of the Internal Memory

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