UPD78F4218AGF-3BA Renesas Electronics America, UPD78F4218AGF-3BA Datasheet - Page 21

• Manufacturer Part Number: UPD78F4218AGF-3BA
• Manufacturer: Renesas Electronics America

Specifications of UPD78F4218AGF-3BA

• Lead Free Status / Rohs Status: Supplier Unconfirmed

versions.
(2) µ µ µ µ PD78F4218A, 78F4218AY
Caution IMS is not provided on the mask ROM versions ( µ µ µ µ PD784217A, 784218A, 784217AY, and
Table 5-2 shows the IMS setting values to make the memory mapping the same as that of the mask ROM
Address: 0FFFCH
IMS
784218AY).
µ PD784217A, 784217AY
µ PD784218A, 784218AY
ROM1
RAM1
Table 5-2. Setting Value of Internal Memory Size Switching Register (IMS)
0
0
1
1
0
0
1
1
7
1
Figure 5-2. Internal Memory Size Switching Register (IMS) Format
Target Mask ROM Version
6
1
ROM0
RAM0
After reset: FFH
0
1
0
1
0
1
0
1
ROM1
µ µ µ µ PD78F4216A, 78F4218A, 78F4216AY, 78F4218AY
5
64 KB
128 KB
192 KB
256 KB
3,072 bytes
6,656 bytes
7,168 bytes
12,288 bytes
Data Sheet U14125EJ3V0DS
ROM0
4
W
Peripheral RAM capacity selection
Internal ROM capacity selection
3
1
EFH
FFH
2
1
IMS Setting Value
RAM1
1
RAM0
0
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