參數(shù)資料
型號(hào): HD4048412TF
廠商: Hitachi,Ltd.
英文描述: 4-Bit Single-Chip Microcomputer
中文描述: 4位單片機(jī)
文件頁數(shù): 33/125頁
文件大小: 471K
代理商: HD4048412TF
HD404849 Series
33
but the accuracy of the contents of the accumulator, B register, W register, X/SPX register, Y/SPY register,
carry flag, and serial data register cannot be guaranteed.
Stop mode
Oscillator
Internal
clock
STOP instruction execution
t
res
t
RC
(stabilization period)
t
res
RESET
or
STOPC
Figure 16 Timing of Stop Mode Cancellation
Watch Mode:
In watch mode, the clock function (timer A) using the X1 and X2 oscillator and the LCD
function operate, but other function operations stop. Therefore, the power dissipation in this mode is the
second least to stop mode, and this mode is convenient when only clock display is used. In this mode, the
OSC
1
and OSC
2
oscillator stops, but the X1 and X2 oscillator operates. The MCU enters watch mode if the
STOP instruction is executed in active mode when TMA3 = 1, or if the STOP or SBY instruction is
executed in subactive mode.
Watch mode is terminated by a
RESET
input or a timer-A/
INT
0
interrupt request. For details of
RESET
input, refer to the Stop Mode section. When terminated by a timer-A/
INT
0
interrupt request, the MCU
enters active mode if LSON = 0, or subactive mode if LSON = 1. After an interrupt request is generated,
the time required to enter active mode is t
RC
for a timer A interrupt, and T
X
(where T + t
RC
< T
X
< 2T + t
RC
)
for an INT
0
interrupt, as shown in figures 17 and 18.
Operation during mode transition is the same as that at standby mode cancellation (figure 15).
相關(guān)PDF資料
PDF描述
HD404848 4-Bit Single-Chip Microcomputer
HD404848FS 4-Bit Single-Chip Microcomputer
HD404848H RELAY SOCKET
HD404848TF PLASTIC-GRIP
HD404849 TERMINAL
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
HD404848 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:4-Bit Single-Chip Microcomputer
HD404848FS 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:4-Bit Single-Chip Microcomputer
HD404848H 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:4-Bit Single-Chip Microcomputer
HD404848TF 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:4-Bit Single-Chip Microcomputer
HD404849 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:4-Bit Single-Chip Microcomputer