E62655RUSB Renesas Electronics America, E62655RUSB Datasheet - Page 751

• Manufacturer Part Number: E62655RUSB
• Description: EMULATOR BASE H8S/2655R W/USB
• Manufacturer: Renesas Electronics America
• Type: Microcontrollerr

Specifications of E62655RUSB

• Contents: E6000 Emulator Unit and 4 Logic Probes
• For Use With/related Products: H8S/2655R
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

19.1
The H8S/2655 has 128 kbytes of on-chip ROM (PROM or mask ROM), and the H8S/2653 has 64
kbytes. The ROM is connected to the H8S/2600 CPU by a 16-bit data bus. The CPU accesses both
byte data and word data in one state, making possible rapid instruction fetches and high-speed
processing.
The on-chip ROM is enabled or disabled by setting the mode pins (MD
EAE in BCRL.
The PROM version of the H8S/2655 Group can be programmed with a general-purpose PROM
programmer, by setting PROM mode.
19.1.1
Figure 19.1 shows a block diagram of the on-chip ROM.
Overview
Block Diagram
Figure 19.1 Block Diagram of ROM (H8S/2655)
H'00FFFE
H'01FFFE
H'000000
H'000002
H'010000
H'010002
Internal data bus (upper 8 bits)
Internal data bus (lower 8 bits)
Section 19 ROM
H'00FFFF
H'01FFFF
H'000001
H'000003
H'010001
H'010003
Rev. 5.00 Sep 14, 2006 page 721 of 1060
When EAE = 0
2
, MD
1
, and MD
REJ09B0331-0500
Section 19 ROM
0
) and bit