参数资料
型号: RTC-4701JEB
厂商: EPSON TOYOCOM CORP
元件分类: 时钟/数据恢复及定时提取
英文描述: REAL TIME CLOCK, PDSO20
封装: VSOJ-20
文件页数: 6/22页
文件大小: 203K
代理商: RTC-4701JEB
C165
Data Sheet
10
V2.0, 2000-12
P6
P6.0
P6.1
P6.2
P6.3
P6.4
P6.5
P6.6
P6.7
82
83
84
85
86
87
88
89
84
85
86
87
88
89
90
91
IO
O
I
I/O
O
Port 6 is an 8-bit bidirectional I/O port. It is bit-wise
programmable for input or output via direction bits.
For a pin configured as input, the output driver is put
into high-impedance state. Port 6 outputs can be
configured as push/pull or open drain drivers.
The Port 6 pins also serve for alternate functions:
CS0
Chip Select 0 Output
CS1
Chip Select 1 Output
CS2
Chip Select 2 Output
CS3
Chip Select 3 Output
CS4
Chip Select 4 Output
HOLD
External Master Hold Request Input
HLDA
Hold Acknowledge Outp.(master mode)
or Input (slave mode)
BREQ
Bus Request Output
P2
P2.8
P2.9
P2.10
P2.11
P2.12
P2.13
P2.14
P2.15
90
91
92
93
94
95
96
97
92
93
94
95
96
97
98
99
IO
I
Port 2 is an 8-bit bidirectional I/O port. It is bit-wise
programmable for input or output via direction bits.
For a pin configured as input, the output driver is put
into high-impedance state. Port 2 outputs can be
configured as push/pull or open drain drivers. The
following Port 2 pins serve for alternate functions:
EX0IN
Fast External Interrupt 0 Input
EX1IN
Fast External Interrupt 1 Input
EX2IN
Fast External Interrupt 2 Input
EX3IN
Fast External Interrupt 3 Input
EX4IN
Fast External Interrupt 4 Input
EX5IN
Fast External Interrupt 5 Input
EX6IN
Fast External Interrupt 6 Input
EX7IN
Fast External Interrupt 7 Input
P5
P5.10
P5.11
P5.12
P5.13
P5.14
P5.15
98
99
100
1
2
3
100
1
2
3
4
5
I
Port 5 is a 6-bit input-only port with Schmitt-Trigger
char. The pins of Port 5 also serve as timer inputs:
T6EUD
GPT2 Timer T6 Ext. Up/Down Ctrl Input
T5EUD
GPT2 Timer T5 Ext. Up/Down Ctrl Input
T6IN
GPT2 Timer T6 Count Input
T5IN
GPT2 Timer T5 Count Input
T4EUD
GPT1 Timer T4 Ext. Up/Down Ctrl Input
T2EUD
GPT1 Timer T2 Ext. Up/Down Ctrl Input
Table 2
Pin Definitions and Functions (cont’d)
Symbol Pin Nr
TQFP
Pin Nr
MQFP
Input
Outp.
Function
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