參數(shù)資料
型號： M37754S4CGP
廠商： Mitsubishi Electric Corporation
英文描述： SINGLE-CHIP 16BIT CMOS MICROCOMPUTER
中文描述： 單芯片16位微機的CMOS
文件頁數(shù)： 75/114頁
文件大?。?/td> 1116K
代理商： M37754S4CGP
75
PRELIMINARY
Notice: This is not a final specification.
Some parametric limits are subject to change.
MITSUBISHI MICROCOMPUTERS
M37754M8C-XXXGP, M37754M8C-XXXHP
M37754S4CGP, M37754S4CHP
SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
OUTPUT FUNCTION OF CHIP SELECT SIGNAL
Ports P9
0
to P9
4
can output the chip select signals CS
0
to CS
4
ac-
cording to the contents of chip select control register and chip select
area register. Bits 0 to 3 of chip select control register select either
chip select output (or addresses A
20
to A
22
output) or port function.
Additionally, bits 0 to 2 of chip select area register select the area in-
tended for each chip select signal.
Figure 87 shows the bit configuration of chip select control register
and Figure 88 shows that of chip select area register. Figure 89
shows the chip select areas.
The bus cycle of CS
3
and CS
4
can be selected with bits 4 to 7 of chip
select control register. That selection is valid regardless of the bus
cycle select bits of processor mode register 1. Additionally, that bus
cycle selection of CS
3
and CS
4
is valid when selecting port function
with the CS
3
and CS
4
function select bits.
When accessing addresses in which the chip select area specified
by bits 0 to 2 of chip select area register and the internal memory
area overlap one another, chip select signals are not output. In this
case, its bus cycle is the cycle of internal memory area access.
It is possible to make the chip select output floating during Hold
state. That is realized by clearing the corresponding bit of port P9
direction register (address 15
16
) to “0” and bits 0 to 2 of waveform
output mode register (address 1A
16
) to “000”. The timing of Hold
start and termination is the same as that of addresses A
0
to A
19
. (Re-
fer to section on processor mode.)
ADDRESS OUTPUT FUNCTION
Port P9
1
to P9
3
can output the high-order addresses (A
20
to A
22
) ac-
cording to bits 1 and 2 of chip select control register, and bits 6 and 7
of chip select area register.
About signal pairs of A
20
and CS
1
, A
21
and CS
2
, and A
22
and CS
3
,
only one signal can be output. It is because chip select signals CS
1
to CS
3
output are common to ports P9
1
to P9
3
and addresses A
20
to
A
22
output.
It is possible to make the address output floating during Hold state.
That is realized by clearing the corresponding bit of port P9 direction
register (address 15
16
) to “0” and bits 0 to 2 of waveform output
mode register (address 1A
16
) to “000”. The timing of Hold start and
termination is the same as that of addresses A
0
to A
19
. (Refer to sec-
tion on processor mode.)
Fig. 87 Chip select control register bit configuration
Address
62
16
CS
0
function select bit
(Note 1)
0 : Port P9
0
function
1 : CS
0
output
CS
4
function select bit
0 : Port P9
4
function
1 : CS
4
output
CS
1
, CS
2
function select bit
(Note 2)
0 : Port P9
1
, P9
2
function
1 : CS
1,
CS
2
output or A
20
, A
21
output
CS
3
function select bit
(Note 2)
0 : Port P9
3
function
1 : CS
3
output or A
22
output
7
6
5
4
3
2
1
0
CS
3
bus cycle select bits
b5 b4 In high-speed In low-speed
0 0 : 5-
φ
access Do not select.
0 1 : 4-
φ
access 4-
φ
access
1 0 : 3-
φ
access 3-
φ
access
1 1 : Do not select. 2-
φ
access
CS
4
bus cycle select bits
b7 b6 In high-speed In low-speed
0 0 : 5-
φ
access Do not select.
0 1 : 4-
φ
access 4-
φ
access
1 0 : 3-
φ
access 3-
φ
access
1 1 : Do not select. 2-
φ
access
Notes 1 :
At reset, bit 0 becomes “0” when the CNVss pin’s level is “L”;
bit 0 becomes “1” when the CNVss pin’s level is “H”.
2 :
Bits 6 and 7 of chip select area register (address 63
16
) specify
whether the chip select signal or address is output.
Chip select control register
相關PDF資料
PDF描述
M37754S4CHP SINGLE-CHIP 16BIT CMOS MICROCOMPUTER
M37754 SINGLE-CHIP 16BIT CMOS MICROCOMPUTER
M37754M8C Single Chip 16 Bits CMOS Microcomputer(16位單片機)
M37902F8CHP DIODE SCHOTTKY DUAL COMMON-ANODE 25V 200mW 0.32V-vf 200mA-IFM 1mA-IF 2uA-IR SOT-23 3K/REEL
M37902FGCGP SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
相關代理商/技術參數(shù)
參數(shù)描述
M37754S4CHP 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
M3775PR-H400CL 制造商:Bonitron 功能描述:OVERVOLTAGE BRAKING RESISTOR
M3775RK-0.75A 制造商:Bonitron 功能描述:OVERVOLTAGE BRAKING RESISTOR
M3775RK-C0.50A 制造商:Bonitron 功能描述:OVERVOLTAGE BRAKING RESISTOR
M3775RK-C0.50B 制造商:Bonitron 功能描述:OVERVOLTAGE BRAKING RESISTOR
發(fā)布緊急采購，3分鐘左右您將得到回復。

采購需求

(若只采購一條型號，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進入我的后臺，查看報價

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進入我的后臺，查看報價

*型號 *數(shù)量 廠商 批號 封裝
添加更多采購

我的聯(lián)系方式

*
*
*