參數(shù)資料
型號: AT89EB5114-TGSIL
廠商: Atmel
文件頁數(shù): 24/86頁
文件大?。?/td> 0K
描述: IC 8051 MCU FLASH 4K 20SOIC
產品培訓模塊: MCU Product Line Introduction
標準包裝: 38
系列: 89EB
核心處理器: 8051
芯體尺寸: 8-位
速度: 40MHz
外圍設備: POR,PWM,WDT
輸入/輸出數(shù): 11
程序存儲器容量: 4KB(4K x 8)
程序存儲器類型: 閃存
EEPROM 大?。?/td> 256 x 8
RAM 容量: 256 x 8
電壓 - 電源 (Vcc/Vdd): 3 V ~ 3.6 V
數(shù)據轉換器: A/D 6x10b
振蕩器型: 內部
工作溫度: -40°C ~ 85°C
封裝/外殼: 20-SOIC(0.295",7.50mm 寬)
包裝: 管件
產品目錄頁面: 616 (CN2011-ZH PDF)
30
AT89/83EB5114
4311C–8051–02/08
Table 15. TMOD Register
TMOD (S:89h)
Timer/Counter Mode Control Register.
Reset Value = 0000 0000b
Table 16. TH0 Register
TH0 (S:8Ch)
Timer 0 High Byte Register.
Reset Value = 0000 0000b
7
6
5
4
3
2
1
0
GATE1
C/T1#
M11
M01
GATE0
C/T0#
M10
M00
Bit
Number
Bit
Mnemonic Description
7
GATE1
Timer 1 Gating Control bit
Clear to enable Timer counter 1 whenever TR1 bit is set.
Set to enable Timer counter 1 only while INT1# pin is high and TR1 bit is set.
6
C/T1#
Timer 1 Counter/Timer Select bit
Clear for Timer operation: Timer 1 counts the divided-down system clock.
Set for Counter operation: Timer 1 counts negative transitions on external pin T1.
5
M11
Timer 1 Mode Select bits
M11 M01 Operating mode
0
Mode 0:
8-bit Timer/Counter (TH1) with 5-bit prescaler (TL1).
0
1
Mode 1:
16-bit Timer/Counter.
1
0
Mode 2:
8-bit auto-reload Timer/Counter (TL1). Reloaded from
TH1 at overflow.
1
Mode 3:Timer 1 halted. Retains count.
4
M01
3
GATE0
Timer 0 Gating Control bit
Clear to enable Timer counter 0 whenever TR0 bit is set.
Set to enable Timer counter 0 only while INT0# pin is high and TR0 bit is set.
2
C/T0#
Timer 0 Counter/Timer Select bit
Clear for Timer operation: Timer 0 counts the divided-down system clock.
Set for Counter operation: Timer 0 counts negative transitions on external pin T0.
1
M10
Timer 0 Mode Select bit
M10 M00
Operating mode
0
Mode 0:8-bit Timer/Counter (TH0) with 5-bit prescaler (TL0).
0
1
Mode 1:16-bit Timer/Counter.
1
0
Mode 2:8-bit auto-reload Timer/Counter (TL0).
Reloaded from TH0 at overflow
1
Mode 3:TL0 is an 8-bit Timer/Counter
TH0 is an 8-bit Timer using Timer 1’s TR0 and TF0 bits.
0
M00
7
6
5
4
3
2
1
0
Bit
Number
Bit
Mnemonic Description
7:0
High Byte of Timer 0.
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