參數(shù)資料
型號(hào): μPD789216Y
廠商: NEC Corp.
英文描述: 8 Bit Single Chip Microcontrollers(8 位單片微控制器)
中文描述: 8位單片機(jī)微控制器(8位單片微控制器)
文件頁數(shù): 42/144頁
文件大?。?/td> 632K
代理商: ΜPD789216Y
Preliminary Product Information
42
μ
PD789216Y, 789217Y
(2) Buzzer output control register (BZC90)
Based on the count clock (fcl) selected with the count clock selection bits (TCL901 and TCL900), this register
sets a buzzer frequency and controls square wave output
BZC90 is manipulated using a 1-bit or 8-bit memory manipulation instruction.
A RESET input clears BZC90 to 00H.
Figure 6-13. Format of Buzzer Output Control Register
BZOE90
Buzzer port output control
Disables buzzer port output.
Enables buzzer port output.
Note
0
1
0
0
0
0
BCS902
BCS901
BCS900
BZOE90
BZC90
Symbol
Address
When reset
R/W
FF49H
00H
R/W
6
7
5
4
BCS902
BCS901
BCS900
Buzzer frequency
0
0
0
0
1
1
1
1
0
0
1
1
0
0
1
1
0
1
0
1
0
1
0
1
3
2
1
0
fcl = f
CC
/2
2
fcl = f
CC
/2
6
fcl = f
CC
/2
7
fcl = f
XT
fcl/2
4
(62.5 kHz)
fcl/2
5
(31.3 kHz)
fcl/2
8
(3.91 kHz)
fcl/2
9
(1.95 kHz)
fcl/2
10
(977 Hz)
fcl/2
11
(488 Hz)
fcl/2
12
(244 Hz)
fcl/2
13
(122 Hz)
fcl/2
4
(3.91 kHz)
fcl/2
5
(1.95 kHz)
fcl/2
8
(244 Hz)
fcl/2
9
(122 Hz)
fcl/2
10
(61 Hz)
fcl/2
11
(30.5 Hz)
fcl/2
12
(15.3 Hz)
fcl/2
13
(7.63 Hz)
fcl/2
4
(1.95 kHz)
fcl/2
5
(977 Hz)
fcl/2
8
(122 Hz)
fcl/2
9
(61 Hz)
fcl/2
10
(30.5 Hz)
fcl/2
11
(15.3 Hz)
fcl/2
12
(7.63 Hz)
fcl/2
13
(3.81 Hz)
fcl/2
4
(2.05 kHz)
fcl/2
5
(1.02 kHz)
fcl/2
8
(128 Hz)
fcl/2
9
(64 Hz)
fcl/2
10
(32 Hz)
fcl/2
11
(16 Hz)
fcl/2
12
(8 Hz)
fcl/2
13
(4 Hz)
Note
When setting BZOE90 to 1, TOE82 must be fixed to 0. (See
Figure 6-20
.)
Cautions 1. Bits 4 to 7 must be fixed to 0.
2. If the subclock is selected as the count clock (TCL901 = 1, TCL900 = 1: see Figure 6-12), the
subclock is not synchronized when buzzer port output is enabled. In this case, the capture
function and TM90 register read function are disabled. In addition, the count value of the
TM90 register is undefined.
Remarks 1.
f
CC
: Main system clock oscillation frequency
2.
f
XT
: Subsystem clock oscillation frequency
3.
The parenthesized values apply to operation at f
CC
= 4.0 MHz or f
XT
= 32.768 kHz.
相關(guān)PDF資料
PDF描述
μPD789217Y 8 Bit Single Chip Microcontrollers(8 位單片微控制器)
μPD789405 8 Bit Single Chip Microcontrollers(8位單片微控制器)
μPD789407 8 Bit Single Chip Microcontrollers(8位單片微控制器)
μPD789406 8 Bit Single Chip Microcontrollers(8位單片微控制器)
μPD789417 8 Bit Single Chip Microcontrollers(8位單片微控制器)
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
PD78F0134 制造商:NEC 制造商全稱:NEC 功能描述:8-Bit Single-Chip Microcontrollers
PD78F0134(A) 制造商:NEC 制造商全稱:NEC 功能描述:8-Bit Single-Chip Microcontrollers
PD78F0134(A1) 制造商:NEC 制造商全稱:NEC 功能描述:8-Bit Single-Chip Microcontrollers
PD78F0134A 制造商:NEC 制造商全稱:NEC 功能描述:8-Bit Single-Chip Microcontrollers
PD78F0134A1 制造商:NEC 制造商全稱:NEC 功能描述:8-Bit Single-Chip Microcontrollers