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參數(shù)資料
| 型號： | Z08615 |
| 廠商： | ZILOG INC |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | NMOS 8-BIT Z8 MCU Keyboard Controller(NMOS 8位 鍵盤微控制器) |
| 中文描述： | 8-BIT, MROM, 5 MHz, MICROCONTROLLER, XMA |
| 文件頁數(shù)： | 11/21頁 |
| 文件大?。?/td> | 953K |
| 代理商： | Z08615 |
Z08615
Zilog
NMOS 8-Bit Z8
MCU Keyboard Controller
DS97KEY2100
A1-11
1
The device incorporates special functions to enhance
Zilog's Z8 applications as a keyboard controller, scientific
research and advanced technologies applications.
Program Memory.
The 16-bit program counter address-
es 4 KB of program memory space at internal locations
(Figure 9).
The first 12 bytes of program memory are reserved for the
interrupt vectors. These locations have six 16-bit vectors
that correspond to the six available interrupts.
Byte 12 to byte 4095 consists of on-chip, mask pro-
grammed ROM. Addresses 4096 and greater are re-
served.
Register File
. The register file (Figure 10) consists of four
I/O port registers, 124 general-purpose registers and 16
control and status registers (R3-R0, R127-R4, and R255-
R240, respectively). The instructions can access registers
directly or indirectly through an 8-bit address field. This al-
lows short, 4-bit register addressing using the Register
Figure 9. Program Memory Map
12
11
10
9
8
7
6
5
4
3
2
1
0
On-Chip
ROM
Location of
First Byte of
Instruction
Executed
After RESET
Interrupt
Vector
(Lower Byte)
Interrupt
Vector
(Upper Byte)
IRQ5
IRQ4
IRQ4
IRQ3
IRQ3
IRQ2
IRQ2
IRQ1
IRQ1
IRQ0
IRQ0
IRQ5
65535
4096
4095
Reserved
Figure 10. Register File
Stack Pointer (Bits 7-0)
R255
General-Purpose Register (Bits 7-0)
Register Pointer
Program Control Flags
Interrupt Mask Register
Interrupt Request Register
Interrupt Priority Register
Ports 1-0 Mode
Port 3 Mode
Port 2 Mode
T0 Prescaler
Timer/Counter0
T1 Prescaler
Timer/Counter1
Timer Mode
Reserved
Not Implemented
General-Purpose
Registers
Port 3
Port 2
Port 1
Port 0
R254
R253
R252
R251
R250
R249
R248
R247
R246
R245
R244
R243
R242
R241
R240
R127
R3
R2
R1
R0
SPL
GPR
RP
FLAGS
IMR
IRQ
IPR
P01M
P3M
P2M
PREQ
T0
PRE1
T1
TMR
P3
P2
P1
P0
R4
LOCATION
IDENTIFIERS
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| Z08617 | NMOS Z8 8-BIT MCU KEYBOARD CONTROLLER |
| Z100FF3 | 2,000 V - 10,000 V Rectifiers |
| Z100FG | 2,500 V - 10,000 V Rectifiers 0.50 A - 1.5 A Forward Current 200 ns Recovery Time |
| Z100F | 2,500 V - 10,000 V Rectifiers |
| Z100SG | 2,500 V - 10,000 V Rectifiers (0.50 A - 1.5 A Forward Current 3000 ns Recovery Time) |
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| Z0867108PSCR002 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:8-Bit Microcontroller |
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