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參數(shù)資料
| 型號： | HT48R05A-1 |
| 廠商： | Holtek Semiconductor Inc. |
| 英文描述： | 8-Bit High Performance RISC-like OTP Microcontroller(8位、高性能、類似RISC、一次可編程微控制器，用于多I/O接口設備) |
| 中文描述： | 8位高性能RISC樣檢察官辦公室的微控制器（8位，高性能，類似的RISC，一次可編程微控制器，用于多的I / O接口設備） |
| 文件頁數(shù)： | 14/44頁 |
| 文件大?。?/td> | 290K |
| 代理商： | HT48R05A-1 |
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HT48R05A-1
14
November 29, 2000
after wake-up. If the wake-up results from an
interrupt acknowledgment, the actual inter-
rupt subroutine execution will be delayed by
one or more cycles. If the wake-up results in the
nextinstructionexecution,thiswillbeexecuted
immediately after the dummy period is fin-
ished.
To minimize power consumption, all the I/O
pins should be carefully managed before enter-
ing the HALT status.
Reset
There are three ways in which a reset can oc-
cur:
RES reset during normal operation
RES reset during HALT
WDT time-out reset during normal operation
The WDT time-out during HALT is different
from other chip reset conditions, since it can
perform a "warm reset" that resets only the PC
and SP, leaving the other circuits in their origi-
nal state. Some registers remain unchanged
during other reset conditions. Most registers
are reset to the "initial condition" when the re-
set conditions are met. By examining the PD
and TO flags, the program can distinguish be-
tween different "chip resets".
TO PD
RESET Conditions
0
0
RES reset during power-up
u
u
RES reset during normal operation
0
1
RES wake-up HALT
1
u
WDT time-out during normal opera-
tion
1
1
WDT wake-up HALT
Note: "u" means "unchanged"
To guarantee that the system oscillator is
started and stabilized, the SST (System
Start-upTimer)providesanextra-delayof1024
system clock pulses when the system reset
(power-up, WDT time-out or RES reset) or the
system awakes from the HALT state.
When a system reset occurs, the SST delay is
added during the reset period. Any wake-up
from HALT will enable the SST delay.
The functional unit chip reset status are as
shown below.
PC
000H
Interrupt
Disable
Prescaler
Clear
WDT
Clear. After master reset,
WDT begins counting
Timer/event
Counter
Off
Input/output
Ports
Input mode
SP
Points to the top of the stack
/
1 , $ : * - /
4 1 0 % $ /
Reset timing chart
Reset circuit
"
' # , $ % $ /
"
=
* ( 3
$ % $ /
2 % / $ , $ % $ /
: > 1 /1 0 0 ( $
* - . / $ #
Reset configuration
相關PDF資料 |
PDF描述 |
|---|---|
| HT48R05A | 8-Bit OTP Microcontroller |
| HT48R06A-1 | 8-Bit High Performance RISC-like OTP Microcontroller(8位、高性能、類似RISC、一次可編程微控制器，用于多I/O接口設備) |
| HT48R10A-1 | 8-Bit High Performance RISC-like Microcontroller Suitable for Multiple I/O Application(高性能、指令類似RISC的8位微控制器，用于多I/O接口設備) |
| HT48R10A | 8-BIT MICROCONTROLLER |
| HT48R30A-1 | 8-Bit High Performance RISC-like Microcontroller Suitable for Multiple I/O Application(高性能、指令類似RISC的8位微控制器，用于多I/O接口設備) |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| HT48R05A-1_08 | 制造商:HOLTEK 制造商全稱:Holtek Semiconductor Inc 功能描述:Cost-Effective I/O Type 8-Bit MCU |
| HT48R062 | 制造商:HOLTEK 制造商全稱:Holtek Semiconductor Inc 功能描述:Cost-Effective I/O Type 8-Bit MCU |
| HT48R062_08 | 制造商:HOLTEK 制造商全稱:Holtek Semiconductor Inc 功能描述:Cost-Effective I/O Type 8-Bit MCU |
| HT48R063 | 制造商:HOLTEK 制造商全稱:Holtek Semiconductor Inc 功能描述:Enhanced I/O Type 8-Bit OTP MCU |
| HT48R063_10 | 制造商:HOLTEK 制造商全稱:Holtek Semiconductor Inc 功能描述:Enhanced I/O Type 8-Bit OTP MCU |
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