参数资料
型号: S-7760A42XX-TCT1G
元件分类: 微控制器/微处理器
英文描述: SPECIALTY MICROPROCESSOR CIRCUIT, PDSO16
封装: LEAD FREE, TSSOP-16
文件页数: 20/53页
文件大小: 860K
代理商: S-7760A42XX-TCT1G
PROGRAMMABLE PORT CONTROLLER (PORT EXPANDER WITH BUILT-IN E2PROM CIRCUIT)
Rev.1.3_00
S-7760A
Seiko Instruments Inc.
27
2. Read/Write in E
2PROM
The example of flowchart for software when accessing to the E
2PROM is shown in Figure 30.
START
Switching access to
E
2PROM/register
1-byte command
(ST, DC2 to 0, 0001, 1, ACK, SP)
*1
Access to
control port E
2PROM
2-byte command
Write
(ST, DC2 to 0, 0101, 0, ACK, CTR7 to 0, ACK, SP)
*1
Read
(ST, DC2 to 0, 0101, 1, ACK, CTR7 to 0, ACK, SP)
*1
END
WP pin = “L”?
Yes
No
*1. ST
: Start condition
DC2 to 0
: Device code
ACK
: Acknowledgment
CTR7 to 0 : Control port register
SP
: Stop condition
Figure 30 Flowchart for Software Example 2
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