HD64F3437TFI16V Renesas Electronics America, HD64F3437TFI16V Datasheet - Page 531

• Manufacturer Part Number: HD64F3437TFI16V
• Description: MCU FLASH 60K 100-TQFP
• Manufacturer: Renesas Electronics America

Specifications of HD64F3437TFI16V

• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

21.1
21.1.1
The H8/3437SF has 60 kbytes of on-chip flash memory. The ROM is connected to the CPU by a
16-bit data bus. The CPU accesses both byte data and word data in two states. Even addresses are
connected to the upper 8 bits, and odd addresses to the lower 8 bits. Word data must start at an
even address.
Enabling and disabling of the on-chip ROM is performed by the mode pins (MD
the EXPE bit in MDCR.
The H8/3437SF flash memory can be programmed and erased on-board as well as with a PROM
programmer.
Table 21.1 Mode Pin Settings and ROM Space
MCU Operating
Mode
Mode 1
Mode 2
Mode 3
(60-kbyte Single-Power-Supply Flash Memory Version)
Flash Memory Overview
Mode Pin Settings and ROM Space
Description
Expanded mode with on-chip ROM disabled
Expanded mode with on-chip ROM enabled
Single-chip mode
Operating Mode
Section 21 ROM
Mode Pin Settings
MD
0
1
1
MD
1
0
1
1
and MD
0
On-Chip
ROM
Disabled
Enabled
Enabled
2
) and
499