- 您現在的位置：買賣IC網 > PDF目錄371881 > HPC46064 (National Semiconductor Corporation) High-Performance microController PDF資料下載
參數資料
| 型號： | HPC46064 |
| 廠商： | National Semiconductor Corporation |
| 英文描述： | High-Performance microController |
| 中文描述： | 高性能微控制器 |
| 文件頁數： | 10/37頁 |
| 文件大小： | 487K |
| 代理商： | HPC46064 |
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頁當前第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頁第37頁
Pin Descriptions
The HPC46064 is available only in 68-pin PLCC, LDCC,
PGA, and 80-pin PQFP packages.
I/O PORTS
Port A is a 16-bit bidirectional I/O port with a data direction
register to enable each separate pin to be individually de-
fined as an input or output. When accessing external memo-
ry, port A is used as the multiplexed address/data bus.
Port B is a 16-bit port with 12 bits of bidirectional I/O similar
in structure to Port A. Pins B10, B11, B12 and B15 are gen-
eral purpose outputs only in this mode. Port B may also be
configured via a 16-bit function register BFUN to individually
allow each pin to have an alternate function.
B0:
TDX
UART Data Output
B1:
B2:
CKX
UART Clock (Input or Output)
B3:
T2IO
Timer2 I/O Pin
B4:
T3IO
Timer3 I/O Pin
B5:
SO
MICROWIRE/PLUS Output
B6:
SK
MICROWIRE/PLUS Clock (Input or Output)
B7:
HLDA
Hold Acknowledge Output
B8:
TS0
Timer Synchronous Output
B9:
TS1
Timer Synchronous Output
B10: UA0
Address 0 Input for UPI Mode
B11: WRRDY Write Ready Output for UPI Mode
B12:
B13: TS2
Timer Synchronous Output
B14: TS3
Timer Synchronous Output
B15: RDRDY
Read Ready Output for UPI Mode
When accessing external memory, four bits of port B are
used as follows:
B10: ALE
Address Latch Enable Output
B11: WR
Write Output
B12: HBE
High Byte Enable Output/Input
(sampled at reset)
B15: RD
Read Output
Port I is an 8-bit input port that can be read as general
purpose inputs and is also used for the following functions:
I0:
I1:
NMI
Nonmaskable Interrupt Input
I2:
INT2
Maskable Interrupt/Input Capture/URD
I3:
INT3
Maskable Interrupt/Input Capture/UWR
I4:
INT4
Maskable Interrupt/Input Capture
I5:
SI
MICROWIRE/PLUS Data Input
I6:
RDX
UART Data Input
I7:
Port D is an 8-bit input port that can be used as general
purpose digital inputs.
Port P is a 4-bit output port that can be used as general
purpose data, or selected to be controlled by timers 4
through 7 in order to generate frequency, duty cycle and
pulse width modulated outputs.
POWER SUPPLY PINS
V
CC1
and
V
CC2
GND
Positive Power Supply
Ground for On-Chip Logic
DGND
Ground for Output Buffers
Note:
There are two electrically connected V
CC
pins on the chip, GND and
DGND are electrically isolated. Both V
CC
pins and both ground pins
must be used.
CLOCK PINS
CKI
The Chip System Clock Input
CKO
The Chip System Clock Output (inversion of
CKI)
Pins CKI and CKO are usually connected across an external
crystal.
CK2
Clock Output (CKI divided by 2)
OTHER PINS
WO
This is an active low open drain output that
signals an illegal situation has been detected
by the WATCHDOG logic.
ST1
Bus Cycle Status Output: indicates first op-
code fetch.
ST2
Bus Cycle Status Output: indicates machine
states (skip, interrupt and first instruction cy-
cle).
RESET
Active low input that forces the chip to restart
and sets the ports in a TRI-STATE mode.
RDY/HLD
Selected by a software bit. It’s either a
READY input to extend the bus cycle for slow-
er memories, or a HOLD request input to put
the bus in a high impedance state for DMA
purposes.
N/C
(No connection) do not connect anything to
this pin.
EXM
External memory enable (active high) disables
internal ROM and maps it to external memory.
EI
External
FFF1:FFF0. (Rising/falling edge or high/low
level sensitive). Alternately can be configured
as 4th input capture.
interrupt
with
vector
address
EXUI
External active low interrupt which is internally
OR’ed with the UART interrupt with vector ad-
dress FFF3:FFF2.
10
相關PDF資料 |
PDF描述 |
|---|---|
| HPC3130PBK | PCI Bus Interface/Controller |
| HPC3130PBM | PCI Bus Interface/Controller |
| HPC3130PGE | PCI Bus Interface/Controller |
| HPC467064 | High-Performance microController with a 16k UV Erasable CMOS EPROM |
| HPC467064EL20 | High-Performance microController with a 16k UV Erasable CMOS EPROM |
相關代理商/技術參數 |
參數描述 |
|---|---|
| HPC46064XXX/T20 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:16-Bit Microcontroller |
| HPC46064XXX/T30 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:16-Bit Microcontroller |
| HPC46064XXX/U20 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:16-Bit Microcontroller |
| HPC46064XXX/U30 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:16-Bit Microcontroller |
| HPC46064XXX/V20 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:16-Bit Microcontroller |
發(fā)布緊急采購，3分鐘左右您將得到回復。