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参数资料
| 型号： | ADP5585ACPZ-01-R7 |
| 厂商： | Analog Devices Inc |
| 文件页数： | 26/40页 |
| 文件大小： | 0K |
| 描述： | IC PORT EXPANDER 10I/O 16LFCSP |
| 标准包装： | 1,500 |
| 系列： | * |
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ADP5585
Data Sheet
Rev. C | Page 32 of 40
Bit(s)
Bit Name
Access
Description
4 to 2
RESET_TRIG_TIME[2:0]
Read/write
Defines the length of time that the reset events must be active before a reset
signal is generated. All events must be active at the same time for the same
duration. RESET_TRIG_TIME[2:0] is common to both RESET1 and RESET2.
000 = immediate.
001 = 1.0 sec.
010 = 1.5 sec.
011 = 2.0 sec.
100 = 2.5 sec.
101 = 3.0 sec.
110 = 3.5 sec.
111 = 4.0 sec.
1 to 0
RESET_PULSE_WIDTH[1:0]
Read/write
Defines the pulse width of the reset signals. RESET_PULSE_WIDTH[1:0] is common
to both RESET1 and RESET2.
00 = 500 s.
01 = 1 ms.
10 = 2 ms.
11 = 10 ms.
PWM_OFFT_LOW Register 0x2F
Table 55. Register 0x2F, PWM_OFFT_LOW Bit Descriptions
Bit(s)
Bit Name
Access
Description
7 to 0
PWM_OFFT_LOW_BYTE[7:0]
Read/write
Lower eight bits of PWM off time.
PWM_OFFT_HIGH Register 0x30
Table 56. PWM_OFFT_HIGH Bit Descriptions
Bit(s)
Bit Name
Access
Description
7 to 0
PWM_OFFT_HIGH_BYTE[7:0]
Read/write
Upper eight bits of PWM off time.
PWM_ONT_LOW Register 0x31
Table 57. PWM_ONT_LOW Bit Descriptions
Bit(s)
Bit Name
Access
Description
7 to 0
PWM_ONT_LOW_BYTE[7:0]
Read/write
Lower eight bits of PWM on time.
PWM_ONT_HIGH Register 0x32
Table 58. PWM_ONT_HIGH Bit Descriptions
Bit(s)
Bit Name
Access
Description
7 to 0
PWM_ONT_HIGH_BYTE[7:0]
Read/write
Upper eight bits of PWM on time. Note that updated PWM times are not latched
until this byte is written to. PWM count times are referenced from the internal
oscillator. The fastest oscillator setting is 500 kHz (2 s increments). Therefore, the
maximum period is
2 s × 216 = 131 ms
This gives PWM frequencies from 500 kHz down to 7.6 Hz.
PWM_CFG Register 0x33
Table 59. PWM_CFG Bit Descriptions
Bit(s)
Bit Name
Access
Description
7 to 3
N/A
Reserved.
2
PWM_IN_AND
0 = no external AND’ing.
1 = PWM signal AND’ed with an externally supplied PWM signal (C3).
1
PWM_MODE
Read/write
Defines PWM mode.
0 = continuous.
1 = executes one PWM period, then sets PWM_EN to 0.
0
PWM_EN
Read/write
Enable PWM generator.
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