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參數資料
| 型號： | HPC46100 |
| 廠商： | National Semiconductor Corporation |
| 英文描述： | HPC46100 High-Performance microController with DSP Capability |
| 中文描述： | HPC46100高性能微控制器與DSP處理能力 |
| 文件頁數： | 19/32頁 |
| 文件大?。?/td> | 436K |
| 代理商： | HPC46100 |
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Shared Memory Support (Continued)
The host waits for the acknowledge signal (HLDA) from the
HPC46100 indicating that the system bus is free On receiv-
ing the acknowledge the host can rapidly transfer data into
or out of the shared memory by using a conventional DMA
controller Upon completion of the message transfer the
host removes the HOLD request and the HPC46100 re-
sumes normal operations
Memory
The HPC46100 has been designed to offer flexibility in
memory usage A total address space of 64 kbytes can be
directly addressed including 1024 bytes of RAM available
on the chip itself
Program memory addressing is accomplished by the 16-bit
program counter on a byte basis Memory can be addressed
directly by instructions or indirectly through registers or any
memory word in the first 256 bytes of memory (On-Chip
Basepage RAM) Memory can be addressed as words or
bytes Words are always addressed on even-byte bounda-
ries The HPC46100 uses memory-mapped organization to
support registers IO and on-chip peripheral functions The
HPC46100 memory address space extends to 64 kbytes
and registers and IO are mapped as shown in Table III
TABLE III HPC46100 Memory Map
FFFFFFF0
Interrupt Vectors
User
FFEFFFD0
JSRP Vectors
Memory
FFCF0800
External Memory
07FF04C0
On-Chip RAM
User
RAM
04BF0196
RESERVED
01950194
Watchdog Register
Watchdog
Logic
0192
T0CON Register
T0T3
Timer
Block
01910190
TMMODE Register
018F018E
DIVBY Register
018D018C
T3 Timer
018B018A
R3 Register
01890188
T2 Timer
01870186
R2 Register
01850184
I2CR RegisterR1
01830182
I3CR RegisterT1
01810180
I4CR Register
017F0168
RESERVED
01670166
CSC3 Register
Control
Select
Chip
01650164
CSC2 Register
01630162
CSC1 Register
01610160
CSC0 Register
015F0158
RESERVED
01570156
T6 Timer
Timer T6
01550154
T6CON Register
01530152
R6A Register
01510150
R6B Register
014F012D
RESERVED
012C
Baud Register
UART
012A
PSR Register
0128
ENUR Register
0126
TBUF Register
0124
RBUF Register
0122
ENUI Register
0120
ENU Register
011E
AD Result Register 7
Converter
AD
011C
AD Result Register 6
011A
AD Result Register 5
0118
AD Result Register 4
0116
AD Result Register 3
0114
AD Result Register 2
0112
AD Result Register 1
0110
AD Result Register 0
010F0109
RESERVED
0108
EICON Register
EI Pin
Control
0106
ADCR3 Register
Control
AD
0104
PORTD Register
0102
ADCR2 Register
0100
ADCR1 Register
00FF00FE
T5 TIMER
Timer 5
00FD00FC
T5CON Register
00FB00FA
R5A Register
00F900F8
R5B Register
00F700F6
RESERVED
00F500F4
BFUN Register
Control
Ports
AB
00F300F2
DIR B Register
00F100F0
RESERVED
FOR DIRA
00EF00EE
T4 TIMER
Timer 4
00ED00EC
T4CON Register
00EB00EA
R4A Register
00E900E8
R4B Register
00E700E6
RESERVED
FOR UPIC
00E500E6
RESERVED
00E300E2
PORTB Register
00E100E0
RESERVED
Ports AB
FOR PORTA
00DF00DE
MRU (MRR upper)
00DD00DC
MRL (MRR lower)
Math Unit
00DA
MIR
00D8
PORTI Register
Registers
Interrupt
Control
00D6
SIO Register
00D4
IRCD Register
00D2
IRPD Register
00D0
ENIR Register
00CF00CE
X Register
HPC Core
Registers
00CD00CC
B Register
00CB00CA
K Register
00C900C8
A Register
00C700C6
PC Register
00C500C4
SP Register
00C300C2
HALTEN Register
00C100C0
PSW Register
00BF0000
On-Chip RAM
Basepage
RAM
26
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