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參數資料
型號: P90CL301BFH
廠商: NXP SEMICONDUCTORS
元件分類: 微控制器/微處理器
英文描述: Low voltage 16-bit microcontroller
中文描述: 16-BIT, 27.02 MHz, MICROCONTROLLER, PQFP80
文件頁數: 11/92頁
文件大小: 526K
代理商: P90CL301BFH
1996 Dec 11
11
Philips Semiconductors
Preliminary specification
Low voltage 16-bit microcontroller
P90CL301BFH (C100)
Table 12
Bus size depending on BSIZE, CSBTX and BSn (n = 0 to 6)
Notes
1.
2.
Depending on bit BSn in register BSREG.
The default value after reset of bits BSn in register BSREG is logic 0 which corresponds to 16-bit mode for CS0 to
CS6. In this case, it is recommended to set BSn to logic 1 in the boot routine. Afterwards if CSBTX is set to logic 1,
BSn can be reset to logic 0 by software for further transfers in 16-bit mode.
6.4
System Control Register (SYSCON)
The P90CL301BFH uses a System Control Register (SYSCON) for adjusting system parameters.
Table 13
System Control Register (address FFFF 8000H)
Notes
1.
2.
The default values after a CPU reset: PCLK1 = 1 and PCLK0 = 1; all other SYSCON bits are a logic 0.
All bits are reset by the RESET instruction, except the IDL bit which is only reset by a CPU reset.
PIN BSIZE
BIT CSBTX
BUS SIZE OF CS0 TO CS6
(1)
BUS SIZE OF CSBTX
PORT PL AVAILABLE
(P0 TO P7)
BSn = 0
BSn = 1
AT
BOOT
AFTER
BOOT
0
0
1
1
0
1
0
1
16 bit
16 bit
note 2
16 bit
8 bit
8 bit
8 bit
8 bit
16
16
8
8
16
8
8
16
no
yes
yes
no
15
14
13
12
11
10
9
8
7
(1)
6
(1)
5
4
3
2
1
(2)
0
WDSC
BPE
CSBTX STBY
PCLK3
PCLK2
PDE
GF
PCLK1
PCLK0 IM WD FBC PD
IDL
DOFF
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