UPD784216AGC-XXX-8EU View Datasheet(PDF) - NEC => Renesas Technology
Part Name
Description
Manufacturer
UPD784216AGC-XXX-8EU Datasheet PDF : 100 Pages
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µPD784214A, 784215A, 784216A, 784217A, 784218A, 784214AY, 784215AY, 784216AY, 784217AY, 784218AY
6. CPU ARCHITECTURE
6.1 Memory Space
A memory space of 1 MB can be accessed. Mapping of the internal data area (special function registers and
internal RAM) can be specified by the LOCATION instruction. The LOCATION instruction must always be executed
after reset cancellation, and must not be used more than once.
(1) When LOCATION 0H instruction is executed
• Internal memory
The internal data area and internal ROM area are mapped as follows.
Part Number
µPD784214A,
µPD784214AY
µPD784215A,
µPD784215AY
µPD784216A,
µPD784216AY
µPD784217A,
µPD784217AY
µPD784218A,
µPD784218AY
Internal Data Area
0F100H to 0FFFFH
0EB00H to 0FFFFH
0DF00H to 0FFFFH
0CD00H to 0FFFFH
Internal ROM Area
00000H to 0F0FFH
10000H to 17FFFH
00000H to 0EAFFH
10000H to 1FFFFH
00000H to 0DEFFH
10000H to 1FFFFH
00000H to 0CCFFH
10000H to 2FFFFH
00000H to 0CCFFH
10000H to 3FFFFH
Caution The following areas that overlap the internal data area of the internal ROM cannot be used
when the LOCATION 0H instruction is executed.
Part Number
µPD784214A,
µPD784214AY
µPD784215A,
µPD784215AY
µPD784216A,
µPD784216AY
µPD784217A,
µPD784217AY
µPD784218A,
µPD784218AY
Unusable Area
0F100H to 0FFFFH (3,840 bytes)
0EB00H to 0FFFFH (5,376 bytes)
0DF00H to 0FFFFH (8,448 bytes)
0CD00H to 0FFFFH (13,056 bytes)
• External memory
The external memory is accessed in external memory expansion mode.
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Data Sheet U14121EJ2V0DS00
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