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參數(shù)資料
| 型號： | HT95L200-100QEP-A |
| 廠商： | Holtek Semiconductor Inc. |
| 英文描述： | LCD Type Phone 8-Bit MCU |
| 中文描述： | 液晶式電話8位微控制器 |
| 文件頁數(shù)： | 13/52頁 |
| 文件大小： | 364K |
| 代理商： | HT95L200-100QEP-A |
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HT95LXXX
Rev. 1.20
13
May 26, 2004
(RABP
Function
Description
Supported for HT95LXXX
400/P 300/P 200/P 100/P 000/P
09H
40H~FFH BANK9 RAM General purpose RAM space
0AH
40H~FFH BANK10 RAM General purpose RAM space
0BH
40H~FFH BANK11 RAM General purpose RAM space
0CH
40H~FFH BANK12 RAM General purpose RAM space
0DH
40H~FFH BANK13 RAM General purpose RAM space
0EH
40H~FFH BANK14 RAM General purpose RAM space
LCD RAM Display Memory
1BH
40H~9FH
LCD RAM
LCD RAM mapping space for COM0~COM15 (see LCD Driver function)
Indirect Addressing Register
Location 00H and 02H are indirect addressing registers
that are not physically implemented. Any read/write op-
eration of [00H] and [02H] will access the memory
pointed to by MP0 and MP1, respectively. Reading loca-
tion [00H] or [02H] indirectly returns the result 00H,
while writing it leads to no operation. MP0 is indirectly
addressable in bank0, but MP1 is available for all banks
by switch BP [04H]. If BP is unequal to 00H, the indirect
addressing mode to read/write operation from 00H~3FH
will return the result as same as the value of bank0.
The memory pointer registers MP0 and MP1 are 8-bits
registers, and the bank pointer register BP is 6-bits reg-
ister for the HT95L400/40P or 5-bits for the other de-
vices in the series.
Accumulator
The accumulator is closely related to ALU operations. It
is also mapped to location 05H of the data memory and
can operate with immediate data. All data movement
between two data memory locations must pass through
the accumulator.
Arithmetic and Logic Unit
ALU
This circuit performs 8-bit arithmetic and logic opera-
tions and provides the following functions:
Arithmetic operations (ADD, ADC, SUB, SBC, DAA)
Logic operations (AND, OR, XOR, CPL)
Rotation (RL, RR, RLC, RRC)
Increment and Decrement (INC, DEC)
Branch decision (SZ, SNZ, SIZ, SDZ, etc.)
The ALU not only saves the results of a data operation
but also changes the status register.
Status Register
STATUS
This status register contains the carry flag (C), auxiliary
carry flag (AC), zero flag (Z), overflow flag (OV), power
down flag (PDF), and watchdog time-out flag (TO). It
also records the status information and controls the op-
eration sequence.
Except for the TO and PDF flags, bits in the status regis-
ter can be altered by instructions, similar to the other
registers. Data written into the status register will not
change the TO or PDF flag. Operations related to the
Register
Label
Bits
Function
STATUS
(0AH)
C
0
C is set if the operation results in a carry during an addition operation or if a borrow
does not take place during a subtraction operation; otherwise C is cleared. Also it is
affected by a rotate through carry instruction.
AC
1
AC is set if the operation results in a carry out of the low nibbles in addition or no bor-
rowfromthehighnibbleintothelownibbleinsubtraction;otherwiseACiscleared.
Z
2
Z is set if the result of an arithmetic or logic operation is 0; otherwise Z is cleared.
OV
3
OV is set if the operation results in a carry into the highest-order bit but not a carry
out of the highest-order bit, or vice versa; otherwise OV is cleared.
PDF
4
PDF is cleared when either a system power-up or executing the CLR WDT in-
struction. PDF is set by executing the HALT instruction.
TO
5
TO is cleared by a system power-up or executing the CLR WDT or HALT in-
struction. TO is set by a WDT time-out.
6, 7
Unused bit, read as 0
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| HT95L20P-100QEP-A | LCD Type Phone 8-Bit MCU |
| HT95A40P | LCD Type Phone 8-Bit MCU |
| HT95C400 | LCD Type Phone 8-Bit MCU |
| HT95C40P | LCD Type Phone 8-Bit MCU |
| HT95L000-56SSOP-A | LCD Type Phone 8-Bit MCU |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| HT95L20P | 制造商:HOLTEK 制造商全稱:Holtek Semiconductor Inc 功能描述:CID Type Phone 8-Bit MCU |
| HT95L20P-100QEP-A | 制造商:HOLTEK 制造商全稱:Holtek Semiconductor Inc 功能描述:LCD Type Phone 8-Bit MCU |
| HT95L300 | 制造商:HOLTEK 制造商全稱:Holtek Semiconductor Inc 功能描述:CID Type Phone 8-Bit MCU |
| HT95L300-100QEP-A | 制造商:HOLTEK 制造商全稱:Holtek Semiconductor Inc 功能描述:LCD Type Phone 8-Bit MCU |
| HT95L30P | 制造商:HOLTEK 制造商全稱:Holtek Semiconductor Inc 功能描述:CID Type Phone 8-Bit MCU |
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