HD64F3437TFI16V Renesas Electronics America, HD64F3437TFI16V Datasheet - Page 395

• 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

18.1
The size of the on-chip ROM is 60 kbytes in the H8/3437, 48 kbytes in the H8/3436, and 32
kbytes in the H8/3434. The on-chip ROM is connected to the CPU via a 16-bit data bus. Both byte
data and word data are accessed in two states, enabling rapid data transfer.
The on-chip ROM is enabled or disabled depending on the inputs at the mode pins (MD
MD
Table 18.1 On-Chip ROM Usage in Each MCU Mode
Mode
Mode 1 (expanded mode)
Mode 2 (expanded mode)
Mode 3 (single-chip mode)
The PROM versions (H8/3437 ZTAT and H8/3434 ZTAT) and flash-memory version (H8/3437
F-ZTAT and H8/3434 F-ZTAT ) can be set to writer mode and programmed with a general-
purpose PROM programmer. In the H8/3437, the accessible ROM addresses are H'0000 to
H'EF7F (61,312 bytes) in mode 2, and H'0000 to H'F77F (63,360 bytes) in mode 3. For details, see
section 3, MCU Operating Modes and Address Space.
0
Section 18 ROM (Mask ROM Version/ZTAT Version)
). See table 18.1.
Overview
MD
0
1
1
1
Mode Pins
MD
1
0
1
0
On-Chip ROM
Disabled (external addresses)
Enabled
Enabled
1
and
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