STA2500DTR STMICROELECTRONICS [STMicroelectronics], STA2500DTR Datasheet - Page 28

• Manufacturer Part Number: STA2500DTR
• Manufacturer: STMICROELECTRONICS [STMicroelectronics]

General specification
Table 23.
1. BT_CLK_REQ_IN_1 and BT_CLK_REQ_IN_2 are used in the configuration logic, UNLESS one or both I/Os re-
28/57
BT_CONFIG_1 BT_CONFIG_2 BT_CONFIG_3 Protocol
programmed as alternate function(s) via the Parameter File.
0
0
1
Figure 3.
●
Figure 4.
●
Figure 5.
Use of the BT_CLK_REQ_IN and BT_CLK_REQ_OUT signals in different modes
The pins which are “not used” are available for alternate functions as described in
Section
Active low clock request input and output combined with UART:
Active low clock request input and output combined with SPI:
7.5.
1
1
0
Active high clock request input and output combined with UART or SPI
Active low clock request input and output combined with UART
Active low clock request input and output combined with SPI
(*) BT_CLK_REQ_IN_1 and BT_CLK_REQ_IN_2 are used UNLESS one or both are re-programmed as alternate function(s) via Parameter File
(*) BT_CLK_REQ_IN_1 and BT_CLK_REQ_IN_2 are used UNLESS one or both are re-programmed as alternate function(s) via Parameter File
(*) BT_CLK_REQ_IN_1 and BT_CLK_REQ_IN_2 are used UNLESS one or both are re-programmed as alternate function(s) via Parameter File
BT_CLK_REQ_IN_1
BT_CLK_REQ_IN_2
BT_CLK_REQ_IN_1
BT_CLK_REQ_IN_2
BT_CLK_REQ_IN_1
BT_CLK_REQ_IN_2
Internal BT CLK Request
Internal BT CLK Request
Internal BT CLK Request
0
1
1
Doc ID 16067 Rev 1
Enhanced
H4 UART
H4 UART
H4 SPI
NOT
NOT
NOT
REQ_IN_1
Active high Active low
(*)
(*)
(*)
(*)
BT_CLK_
(*)
(*)
high
Active
Active
low
AND
AND
(1)
OR
(1)
REQ_IN_2
BT_CLK_
Active
Active
low
low
BT_CLK_REQ_OUT_1
BT_CLK_REQ_OUT_1
BT_CLK_REQ_OUT_2
(1)
(1)
BT_CLK_R
EQ_OUT_1
Active high
Active high
Active low
BT_CLK_R
EQ_OUT_2
STA2500D
Active low
not used
not used