參數(shù)資料
型號(hào)： μPD784214
廠商： NEC Corp.
英文描述： 8/16 Bit Single Chip Microcontrollers(8/16 位單片微控制器)
中文描述： 8 / 16位單片機(jī)微控制器（8 / 16位單片微控制器）
文件頁數(shù)： 20/88頁
文件大?。?/td> 427K
代理商： ΜPD784214
μ
PD784214,784215,784216
20
6. CPU ARCHITECTURE
6.1 Memory Space
A memory space of 1 MByte 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 be always executed
after RESET cancellation, and must not be used more than once.
(1) When LOCATION 0 instruction is executed
Internal memory
The internal data area and internal ROM area are mapped as follows:
Part Number
Internal Data Area
Internal ROM Area
μ
PD784214
0F100H to 0FFFFH
00000H to 0F0FFH
10000H to 17FFFH
μ
PD784215
0EB00H to 0FFFFH
00000H to 0EAFFH
10000H to 1FFFFH
μ
PD784216
0DF00H to 0FFFFH
00000H to 0DEFFH
10000H to 1FFFFH
Caution
The following areas that overlap the internal data area of the internal ROM cannot be used when
the LOCATION 0 instruction is executed.
Part Number
Unusable Area
μ
PD784214
0F100H to 0FFFFH (3840 Bytes)
μ
PD784215
0EB00H to 0FFFFH (5376 Bytes)
μ
PD784216
0DF00H to 0FFFFH (8448 Bytes)
External memory
The external memory is accessed in external memory expansion mode.
(2) When LOCATION 0FH instruction is executed
Internal memory
The internal data area and internal ROM area are mapped as follows:
Part Number
Internal Data Area
Internal ROM Area
μ
PD784214
FF100H to FFFFFH
00000H to 17FFFH
μ
PD784215
FEB00H to FFFFFH
00000H to 1FFFFH
μ
PD784216
FDF00H to FFFFFH
00000H to 1FFFFH
External memory
The external memory is accessed in external memory expansion mode.
相關(guān)PDF資料
PDF描述
μPD784216 8/16 Bit Single Chip Microcontrollers(8/16 位單片微控制器)
μPD784215 8/16 Bit Single Chip Microcontrollers(8/16 位單片微控制器)
μPD784216Y 8/16 Bit Single Chip Microcontrollers(8/16位單片微控制器)
μPD784217Y 8 /16 Bit Single Chip Microcontrollers(8/16位單片微控制器)
μPD784218Y 8 /16 Bit Single Chip Microcontrollers(8/16位單片微控制器)
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