- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄45211 > MCW68332A (FREESCALE SEMICONDUCTOR INC) 32-BIT, MICROCONTROLLER, UUC PDF資料下載
參數(shù)資料
| 型號： | MCW68332A |
| 廠商： | FREESCALE SEMICONDUCTOR INC |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 32-BIT, MICROCONTROLLER, UUC |
| 封裝： | WAFER |
| 文件頁數(shù)： | 37/111頁 |
| 文件大?。?/td> | 650K |
| 代理商： | MCW68332A |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁第30頁第31頁第32頁第33頁第34頁第35頁第36頁當前第37頁第38頁第39頁第40頁第41頁第42頁第43頁第44頁第45頁第46頁第47頁第48頁第49頁第50頁第51頁第52頁第53頁第54頁第55頁第56頁第57頁第58頁第59頁第60頁第61頁第62頁第63頁第64頁第65頁第66頁第67頁第68頁第69頁第70頁第71頁第72頁第73頁第74頁第75頁第76頁第77頁第78頁第79頁第80頁第81頁第82頁第83頁第84頁第85頁第86頁第87頁第88頁第89頁第90頁第91頁第92頁第93頁第94頁第95頁第96頁第97頁第98頁第99頁第100頁第101頁第102頁第103頁第104頁第105頁第106頁第107頁第108頁第109頁第110頁第111頁
MC68332
MOTOROLA
MC68332TS/D
31
3.5.1 Chip-Select Registers
Pin assignment registers CSPAR0 and CSPAR1 determine functions of chip-select pins. These regis-
ters also determine port size (8- or 16-bit) for dynamic bus allocation.
A pin data register (PORTC) latches discrete output data.
Blocks of addresses are assigned to each chip-select function. Block sizes of 2 Kbytes to 1 Mbyte can
be selected by writing values to the appropriate base address register (CSBAR). Address blocks for
separate chip-select functions can overlap.
Chip-select option registers (CSORBT and CSOR[10:0]) determine timing of and conditions for asser-
tion of chip-select signals. Eight parameters, including operating mode, access size, synchronization,
and wait state insertion can be specified.
Initialization code often resides in a peripheral memory device controlled by the chip-select circuits. A
set of special chip-select functions and registers (CSORBT, CSBARBT) is provided to support bootstrap
operation.
3.5.2 Pin Assignment Registers
The pin assignment registers (CSPAR0 and CSPAR1) contain pairs of bits that determine the function
of chip-select pins. The pin assignment encodings used in these registers are shown below.
CSPAR0 contains seven 2-bit fields that determine the functions of corresponding chip-select pins.
CSPAR0[15:14] are not used. These bits always read zero; writes have no effect. CSPAR0 bit 1 always
reads one; writes to CSPAR0 bit 1 have no effect.
Table 12 Pin Assignment Encodings
Bit Field
Description
00
Discrete Output
01
Alternate Function
10
Chip Select (8-Bit Port)
11
Chip Select (16-Bit Port)
CSPAR0 —Chip Select Pin Assignment Register 0
$YFFA44
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
CSPA0[6]
CSPA0[5]
CSPA0[4]
CSPA0[3]
CSPA0[2]
CSPA0[1]
CSBOOT
RESET:
0
DATA2
1
DATA2
1
DATA2
1
DATA1
1
DATA1
1
DATA1
1
DATA0
Table 13 CSPAR0 Pin Assignments
CSPAR0 Field
Chip Select Signal
Alternate Signal
Discrete Output
CSPA0[6]
CS5
FC2
PC2
CSPA0[5]
CS4
FC1
PC1
CSPA0[4]
CS3
FC0
PC0
CSPA0[3]
CS2
BGACK
—
CSPA0[2]
CS1
BG
—
CSPA0[1]
CS0
BR
—
CSBOOT
——
相關PDF資料 |
PDF描述 |
|---|---|
| MC68332GVFC16 | 32-BIT, 16 MHz, MICROCONTROLLER, PQFP132 |
| MC68332ACPV20B1 | 32-BIT, 20 MHz, MICROCONTROLLER, PQFP144 |
| MC68332GCFC16 | 32-BIT, 16 MHz, MICROCONTROLLER, PQFP132 |
| MC68332GVPV16 | 32-BIT, 16 MHz, MICROCONTROLLER, PQFP144 |
| MC68332GMEH20 | 32-BIT, 20 MHz, MICROCONTROLLER, PQFP132 |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| MCW-70A | 制造商:SPC Multicomp 功能描述:WATERPROOF COVER BLACK TOGGL 制造商:SPC Multicomp 功能描述:WATERPROOF COVER, BLACK, TOGGLE SWITCH; For Use With:20mm Lever Height Toggle Switches; Actuator / Cap Color:Black |
| MCW-70B | 制造商:SPC Multicomp 功能描述:WATERPROOF COVER BLACK TOGGL 制造商:SPC Multicomp 功能描述:WATERPROOF COVER, BLACK, TOGGLE SWITCH; For Use With:20mm Lever Height Toggle Switches; Actuator / Cap Color:Black |
| MCW74HC4851ATR DIE | 制造商:ON Semiconductor 功能描述: |
| MCWF06R1000BTL | 制造商:SPC Multicomp 功能描述:RESISTOR 0603 100R 0.1% 0. |
| MCWF06R1001BTL | 制造商:SPC Multicomp 功能描述:RESISTOR 0603 1K 0.1% 0.1W |
發(fā)布緊急采購，3分鐘左右您將得到回復。