Trusted Platform Module (TPM) versions 1.2 vs 2.0 and header number of pins

I am trying to understand the TPM header on a motherboard I have, which is an Asrock "H170m Pro4" It has a TPMS1 header on the motherboard, and it has 9x2 pins with 1 missing.

In searching the web, I see a 14-1 pin TPM module, other references to 20 pins. what's the deal?

here is a link to the manufacturer's site for the specific mobo I am trying to get a TPM chip for. You can download the manual from here: https://www.asrock.com/mb/Intel/H170M%20Pro4/

in H170M Pro4.pdf on pages 6 & 7 it shows the TPMS1 header location and on page 22 it states 17 pin TPMS1 and what each pin does

1. PCICLK bottom row left most
2. FRAME bottom row going right
3. PCIRST#
4. LAD3
5. +3v
6. LAD0
7. no pin
8. +3VSB
9. GND bottom row right most
10. GND top row left most
11. SMB_CLK_MAIN
12. SMB_DATA_MAIN
13. LAD2
14. LAD1
15. GND
16. S_WRDWN# this is above the empty pin #7
17. SERIRQ
18. GND top row right most

what concerns and confuses me is the use of TPMS1 and here at their site https://www.asrock.com/mb/spec/card.asp?Model=TPM-S%20Modulereferring to these 3 things:

• TPM-S module (V 1.2)
• TPM-s module (V 2.0)
• TPM2-S module (V 2.0)

can anyone make sense of this?