參數(shù)資料
型號: UPD75P3018AGK-9EU
廠商: NEC Corp.
元件分類: 圓形連接器
英文描述: Circular Connector; No. of Contacts:56; Series:MS27467; Body Material:Aluminum; Connecting Termination:Crimp; Connector Shell Size:25; Circular Contact Gender:Pin; Circular Shell Style:Straight Plug; Insert Arrangement:25-4 RoHS Compliant: No
中文描述: 4位單片機(jī)
文件頁數(shù): 8/64頁
文件大小: 356K
代理商: UPD75P3018AGK-9EU
PD75P3018A
16
Data Sheet U11917EJ2V0DS00
6. MEMORY CONFIGURATION
6.1 Program Counter (PC) ... 15 bits
This is a 15-bit binary counter that stores program memory address data.
Bit 15 is valid during Mk II mode. But PC14 is fixed at zero during Mk I mode, and the lower 14 bits are all valid.
Figure 6-1. Configuration of Program Counter
6.2 Program Memory (PROM) ... 32768
× 8 bits
The program memory consists of 32768
× 8-bit one-time PROM. The program memory address can be selected as shown
below by setting the stack bank selection (SBS) register.
Mk I Mode
Mk II Mode
Usable address
0000H to 3FFFH
0000H to 7FFFH
Figures 6-2 and 6-3 show the addressing ranges for the program memory and branch instruction and the subroutine call
instruction, during Mk I and Mk II modes.
PC14
PC13
PC12
PC11
PC10
PC9
PC8
PC7
PC6
PC5
PC4
PC3
PC2
PC1
PC0
PC
Fixed at zero during
Mk I mode
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